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REVIEW 3 major objections 4 minor 168 references

Exotic Heavy Hadrons

T0 review · 3 major / 4 minor · reviewed 2026-08-05 · deepseek-v4-flash

Pith's one-line read Short-range color correlations between a heavy quark and antiquark can freeze a pentaquark's color wave function, reducing the five-body problem to three bodies and reproducing the observed Pc and Pcs spectrum.

desk verdict A self-review of the authors' pentaquark framework; the hidden-bottom window is the one genuinely testable output, but the frozen color assumption is load-bearing and the bottom-sector offset is never defined. read the letter →

arxiv 2508.11483 v1 pith:DTH24DPX submitted 2025-08-15 hep-ph nucl-th

classification hep-phnucl-th
keywords exotichadronspentaquarkshidden-charmhidden-bottomcolorcorrelationsFaddeevequationsmultihadronmoleculesTbbb
verification ladder T0 review T1 audit T2 compute T3 formal

The pith

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The reading

This review consolidates a line of calculation in which the short-range Coulomb-like color interaction between a heavy quark and antiquark dominates hidden-flavor pentaquark structure. The paper argues that this interaction freezes the color wave function into a heavy quark-antiquark singlet plus a light diquark antitriplet, reducing the five-body problem to an exactly solvable three-body Faddeev system. The resulting spectrum matches the established $P_c$ and $P_{cs}$ masses in the hidden-charm sector and yields parameter-free hidden-bottom predictions near 11.06-11.23 GeV. The same few-body machinery, fed with a deeply bound $T_{bb}$ tetraquark, produces a three-$B$-meson bound state $T_{bbb}$ with quantum numbers $(I)J^P=(1/2)2^-$, bound by 90 MeV below its lowest strong threshold. A reader should care because these are quantitative, falsifiable predictions that separate quark-substructure dynamics from molecular and hadroquarkonium alternatives.

What carries the argument

The load-bearing object is the color-correlation wave function ansatz of Eq. (1): $\{3_c\}_q \otimes \{1_c\}(Q\bar{Q}) \otimes \{\bar{3}_c\}(qq)$. It freezes the color degrees of freedom so that a five-quark pentaquark becomes a three-body system of a light quark, a heavy quark-antiquark singlet, and a light diquark antitriplet; that system is then solved exactly with Faddeev equations and the AL1 potential (a Coulomb-plus-linear confinement interaction with smeared chromomagnetic spin-spin term). For the molecular claim, the machinery is the coupled-channel $BB^*$/$B^*B^*$ two-body $t$-matrix that produces $T_{bb}$, fed into three-body Faddeev equations. For the width claim, it is a two-cha

What would settle it

A lattice QCD calculation of the five-quark $c\bar{c}uud$ system that finds the dominant color-singlet Fock component to be $(u\bar{c})(cud)$ rather than $(c\bar{c})(uud)$ would falsify the color-correlation spectrum; separately, a physical-mass lattice value of the $T_{bb}$ binding below roughly 50 MeV would dissolve the predicted $T_{bbb}$ bound state, whose three-body binding falls to about 23 MeV and sits about 19 MeV above $BBB$.

Watch

Extended reading notes

Core claim

The central claim is that a single dynamical principle, the Coulomb-like short-range color attraction between the heavy quark and antiquark, organizes the hidden heavy-flavor pentaquark spectrum. Because the $Q\bar{Q}$ pair is heavy, its color-singlet binding energy scales with $2M_Q$ and wins over the light-$Q$ diquark channel, so the pentaquark wave function factorizes as $\{3_c\}_q \otimes \{1_c\}(Q\bar{Q}) \otimes \{\bar{3}_c\}(qq)$. With this ansatz the five-body problem collapses to a three-body Faddeev problem, and the AL1 constituent-quark potential plus spin splittings calibrated to $J/\psi-\eta_c$ and diquark splittings reproduces the masses of $P_c(4312)$, $P_c(4380)$, $P_c(4440)$

Load-bearing premise

The pentaquark spectrum rests on the assumption that the short-range Coulomb-like color attraction freezes the color wave function into a heavy quark-antiquark singlet plus a light diquark antitriplet; if the alternative $(q\bar{Q})(Qqq)$ arrangement dominates, as it does in some chiral quark models, the predicted masses do not follow.

Editorial extensions

If this is right

  • Hidden-bottom pentaquarks, strange and nonstrange, are predicted at 11.06-11.23 GeV; experimental searches in that window can distinguish quark-substructure models, which cluster near 11 GeV, from hadroquarkonium models predicting states near 10.4-10.9 GeV.
  • A three-$B$-meson bound state $T_{bbb}$ with $(I)J^P=(1/2)2^-$ should exist 90 MeV below its lowest strong threshold if the $T_{bb}$ binding is 180 MeV; the three-body binding drops to 43 MeV as the $T_{bb}$ binding is reduced to 87 MeV.
  • No $J^P=3/2^+$ bound state exists for $\Omega_s\Omega_s\Omega_s$, $\Omega_{ccc}\Omega_{ccc}\Omega_{ccc}$, or $\Omega_{bbb}\Omega_{bbb}\Omega_{bbb}$, because Pauli recoupling turns the attractive $^1S_0$ channel repulsive and quark-level antisymmetry supplies a strong repulsive core in the $^5S_2$ channel.
  • The width of a multiquark resonance far from its detection threshold is controlled by its binding relative to the formation channel, not by the decay phase space; this explains why $P_c(4380)$, with the largest phase space, is broad while states with more phase space are narrow.
  • The color-correlation mechanism produces quarkonium-nucleus bound states from quark-gluon dynamics alone within a truncated Hilbert space, offering a quark-level route to $J/\psi$-nucleus and $\eta_c$-nucleus bound states.

Reading between the lines

Editorial extensions of the paper, not claims the author makes directly.

  • If the hidden-bottom pentaquark masses land at 11.06-11.23 GeV, the same color-correlation logic could be extended to doubly heavy tetraquarks and hexaquarks, where the $Q\bar{Q}$ singlet is also energetically favored; the paper's own caution against extrapolating across flavor sectors suggests this extension should be tested case by case.
  • The $T_{bbb}$ binding curve implies a sharp dissolution point: as the input $T_{bb}$ binding is lowered, the three-body state loses roughly half its binding while the $BBB$ threshold drops relative to the $BB^*B^*$ configuration, so a modest reduction in the lattice $T_{bb}$ binding would make the trimer unbound; scanning $T_{bc}$-based or charmed trimers could map where the mechanism fails.
  • The width-ordering rule in Section 4 could be tested directly on the two $P_{cs}(4459)$ candidates: their roughly 13 MeV mass difference but very different widths would probe whether width is set by binding to the formation channel or by phase space, independent of the pentaquark color structure.
  • A natural consequence the paper leaves implicit: if width is set by the formation-channel binding, then the broad $P_c(4380)$ is not evidence of a different internal structure from the narrow $P_c$ states; the same mechanism can produce both from one color-correlation ansatz.
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Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, and a circularity audit.

Referee Report

3 major / 4 minor

Summary. This manuscript, a review of the authors' recent work, addresses two main topics: hidden-flavor pentaquarks in a constituent quark model with Coulomb-like color correlations, and possible multihadron molecules built from deeply bound two-hadron states. The pentaquark analysis reduces the Q\bar Q qqq/q' system to a three-body Faddeev problem using Eq. (1), with one mass offset per flavor sector calibrated to P_c(4312) and P_{cs}(4338), yielding the hidden-charm pattern in Tables 5-6 and hidden-bottom predictions in Tables 8-9. The second part predicts a T_{bbb} three-B-meson bound state with (I)J^P=(1/2)2^- bound by 90 MeV below the lowest strong threshold, and argues that Pauli/quark antisymmetry prevents Ω_i Ω_i Ω_i bound states. A final section models the width of a two-channel resonance lying between its formation and detection thresholds.

Significance. If correct, the framework would provide a single dynamical mechanism for the observed P_c/P_cs pattern, concrete hidden-bottom benchmarks, and a striking prediction of T_{bbb}. The paper's strengths are the use of the AL1 potential fitted to conventional hadrons (not exotics), a standard Faddeev treatment, and falsifiable mass predictions in Tables 8-9. However, as detailed below, the central pentaquark claim rests on a truncated Hilbert space whose omitted component may be dominant, and the bottom-sector mass offset is not defined in the text; these points must be addressed before the predictions can be considered reliable.

major comments (3)
  1. [Section 2.3, Eq. (1) and Eq. (26)] The central pentaquark result follows from reducing the five-quark system to the three-body cluster (Q\bar Q)(qqq) and omitting the orthogonal color-singlet component (q\bar Q)(Qqq) of Eq. (26). As the authors themselves state in Section 2.3, chiral quark models find the omitted component dominant, and the OZI-based rationale is qualitative rather than derived. Consequently the binding energies in Table 4 are eigenvalues of a truncated Hamiltonian, not of the full AL1 five-quark Hamiltonian, and the AL1 fit does not control this truncation. The agreement in Table 5 is not an independent test, because M_{c\bar c,q}^0 is fixed to P_c(4312) and the spin splittings of Eq. (16) are inputs. Please supply a quantitative estimate of the mixing with the omitted component, a full five-body calculation, or substantially weaken the claim that the framework consistently accounts for the observed patt
  2. [Section 2.3, Eqs. (17)-(18), Tables 8-9] The text introduces Tables 8-9 as 'parameter-free predictions' (page 10). This is overstated: Eq. (17) contains M_{Q\bar Q,q}^0, one offset per flavor sector calibrated to data (M_{c\bar c,q}^0=4319 MeV, M_{c\bar c,s}^0=4471 MeV), and Eq. (16) fixes the spin splittings externally. More importantly, the bottom-sector offsets M_{b\bar b,q}^0 and M_{b\bar b,s}^0 used for Tables 8-9 are never defined or derived in this review; without them the predictions cannot be reproduced from the text. Please provide the construction of these offsets or cite the precise definition.
  3. [Section 3.1, Figure 3] The claim that the T_{bbb} state remains robustly stable over the T_{bb} binding-energy range should be qualified. The calculation gives 90 MeV binding for T_{bb} binding of 180 MeV, decreasing to 43 MeV at 87 MeV, but at 50 MeV the T_{bbb} would be bound by only ~23 MeV and lie ~19 MeV above the lowest BBB threshold, i.e., it would not be a bound state. Since the lattice input T_{bb} binding itself has uncertainty, the existence of T_{bbb} as a bound state is contingent on the input being ≳87 MeV. This dependence should be stated explicitly.
minor comments (4)
  1. [General] Typos and language: 'know as multiquarks' (p.2), 'the the' (p.5), 'detail discussion' (p.5), 'This resonances lies' (p.23); 'cotg' in Eq. (28) should be 'cot'.
  2. [Table 3] The F entries for J=3/2 are printed as '3/2 √2' in several rows; this is ambiguous. Please use explicit notation such as 3/(2√2) or (3/2)√2 as appropriate.
  3. [Figure 2] The figure is hard to read and the text refers to 'the second equation' in Figure 2 without labelling the panels. Please label the equations/panels in the figure and refer to them explicitly.
  4. [Section 4] The coupled-channel potential Eq. (27) and the parameters in Table 14 are introduced as a generic model; the text states the results 'align well' and show 'excellent agreement' with LHCb data (page 24). Given that the parameters are not derived from the quark framework of Sections 2-3, please clarify that the width calculation is illustrative rather than a quantitative prediction.

Circularity Check

1 steps flagged · score 6.0 of 10

Charm/strange pentaquark 'predicted' rows are partly calibrated fits: M0 is set so that the v1 state reproduces Pc(4312) and PΛψs(4338), which are then listed as predictions.

  1. fitted input called prediction [Section 2.3, Eq. (17), Tables 5 and 6]
    "Using Mc ¯c,q 0 = 4319 MeV, we compute the predicted masses listed in Table 5. ... Adopting Mc ¯c,s 0 = 4471 MeV, we obtain the results shown in Table 6."

    By Eq. (17), for v1 the spin-splitting terms vanish and M_v1 = M0 − B_v1. With B_v1 = 7 MeV from Table 4, the choice M0 = 4319 MeV forces M_v1 = 4312 MeV, exactly the Pc(4312) mass listed in Table 5; similarly, M0 = 4471 MeV with B_v1 = 133 MeV forces 4338 MeV, the PΛψs(4338) mass in Table 6. These rows are therefore fits by construction, not independent predictions, yet they are presented in tables headed 'Predicted properties ... compared to experimental data' and used as evidence that the framework accounts for the observed pattern. The remaining rows (v2, w1, v3, w3) are genuine postdictions that do not reduce to the calibration, so the circularity is partial.

full rationale

The central pentaquark framework is not entirely circular: the AL1 potential was fitted to ordinary mesons and baryons [64], not to pentaquarks, and the Faddeev binding energies of Table 4 are nontrivial dynamical outputs. The three-body reduction of Eq. (1) is an ansatz/truncation of the five-quark Hilbert space, and the paper itself acknowledges (Sec. 2.3) that chiral quark models find the omitted (q\bar Q)(Qqq) component dominant; that is a correctness risk, not a circular identity. Similarly, the Tbbb and three-Ω results use external lattice inputs and are not constructed from their own conclusions. The concrete circularity is narrower: in each of the two sectors, one offset M0 is calibrated so that the v1 state sits on an observed pentaquark mass, and that same state is then reported in a 'predicted masses' table and counted as agreement. Because two 'predictions' reduce to the fit by construction, the partial-circularity score is 6; the independent postdicted states and external benchmarks prevent a higher score.

Assumptions & free parameters 9 free parameters · 6 assumptions · 2 invented entities

The central pentaquark predictions rest on one calibrated mass offset per flavor sector, two adopted spin-splitting parameters, and the externally fitted AL1 potential. The Tbbb prediction imports the lattice Tbb binding energy as an input. The three-baryon conclusion depends on a model-derived 5S2 repulsive core. The width mechanism uses hand-chosen two-channel potentials. No new force or mediator is invented; the invented entities are predicted states (Tbbb, hidden-bottom pentaquarks), one of which has a genuine discriminating signature.

free parameters (9)
  • Mc c q0 (nonstrange hidden-charm mass offset) = 4319 MeV
    Calibrated via Eq. (17) so that the v1 (J=1/2-) state matches the observed Pc(4312): 4319 - 7 = 4312 MeV.
  • Mc c s0 (strange hidden-charm mass offset) = 4471 MeV
    Calibrated via Eq. (18) so the strange v1 state matches P_Lambda_Psi_s(4338): 4471 - 133 = 4338 MeV.
  • Delta M Q Qbar (charm spin splitting) = 86 MeV
    Adopted effective triplet-singlet splitting for the Q Qbar pair (Eq. 16); drives the v2, w1, w3 masses. Not derived in this review and smaller than the J/psi - eta_c mass difference.
  • Delta M qq (diquark spin splitting) = 146 MeV
    Adopted from lattice estimates spanning 100 to 200 MeV (Eq. 16, Refs. 85-87); drives all s3 = 1 states.
  • Bottom-sector mass offset M0(b) = not stated
    Tables 8 and 9 quote hidden-bottom pentaquark masses, but the text never defines the bottom-sector offset or its derivation, so the headline bottom predictions cannot be reconstructed from the review.
  • AL1 potential parameters (lambda, Lambda, kappa, kappa', A, B, quark masses) = given in Section 2.1
    Global fit to 36 mesons and 53 baryons in Ref. 64; external input, but the pentaquark binding energies in Table 4 and the Tbbb result depend on it.
  • Tbb binding energy input = 90 to 180 MeV
    Input to the Tbbb calculation; the review scans this lattice-derived range and finds the Tbbb binding drops from 90 to 43 MeV (Section 3.1, Refs. 128-129).
  • Omega_i Omega_i 5S2 repulsive core and trigaussian 1S0 fit = alpha = 0.3 to 0.5 fm
    The 5S2 repulsion is computed for a Gaussian parameter alpha (Figure 4); the 1S0 potential is a trigaussian fit to lattice data (Refs. 37, 39, 40). Both are model inputs.
  • Width model Yukawa parameters (Aij, Bij, mu_ij^A, mu_ij^B) = Table 14 values
    Hand-chosen coupling strengths and inverse ranges ('We begin by requiring...' in Section 4); the width trend in Figure 8 is an output of this tuned two-channel scenario.
assumptions (6)
  • domain assumption The pentaquark wave function factorizes as {3c}q x {1c}(Q Qbar) x {3c}(qq) (Eq. 1); Coulomb-like short-range correlations freeze the color wave function.
    This truncation reduces the five-body problem to three bodies. If the (q Qbar)(Qqq) component dominates instead, as in chiral quark models (Ref. 73), the spectrum changes. The authors themselves qualify the derivation as 'within a truncated Hilbert space' (Section 2.3).
  • domain assumption The AL1 constituent quark potential (Eq. 2) with its fitted parameters describes low-energy multiquark dynamics.
    The binding energies in Table 4 come from Faddeev solutions with this potential; its parameters were fit to meson and baryon spectra (Ref. 64), not to multiquark exotica.
  • domain assumption The doubly bottom tetraquark Tbb is bound with a binding energy in the range 90 to 180 MeV (lattice Refs. 128, 32).
    The Tbbb bound-state claim is built on the existence and depth of Tbb; the review explicitly scans this input range rather than deriving it.
  • domain assumption The 5S2 Omega_i Omega_i interaction has a strong short-range repulsive core from quark-level Pauli blocking (Eq. 21 with C(S) = 1/3).
    This repulsion drives the no-tribaryon conclusion. It is derived in the authors' Born-Oppenheimer formalism using a quark wave-function parameter alpha, not measured directly from lattice QCD.
  • ad hoc to paper Exotic multiquark resonances couple only through two color-singlet two-body channels with Yukawa potentials (Eq. 27), with the lower channel serving as the detection channel.
    The width mechanism (Section 4) is built on this two-channel reduction with hand-chosen parameters; its connection to the real Pc states is interpretive.
  • standard math The Tbbb -> Omega_bbb + pbar decay matrix element vanishes because the color wave functions of the two configurations are orthogonal.
    Symmetry argument in Section 3.1 following Ref. 149; used to claim Tbbb would be a narrow resonance even if the baryon-antibaryon threshold lay below its mass.
invented entities (2)
  • Tbbb three-B-meson bound state
    purpose: Predicted bound state of three B mesons with (I)JP = (1/2)2-, about 90 MeV below the lowest strong threshold for a 180 MeV Tbb binding input.
    No experimental search channel or production mechanism is concretely proposed; existence is conditional on the lattice Tbb-binding input. It is a falsifiable prediction only in the weak sense of a mass to look for.
  • Hidden-bottom pentaquark multiplet (five states in 11.06 to 11.23 GeV) independent evidence
    purpose: Predicted spectrum for b bbar qqq and b bbar qqs pentaquarks (Tables 8 and 9).
    The predicted mass window cleanly conflicts with hadroquarkonium models (10.4 to 10.9 GeV, Ref. 92), providing a discriminating experimental handle not used to fit the constants.

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Cite this review

Pith. "Pith review of Exotic Heavy Hadrons." pith.science (2026). https://pith.science/paper/DTH24DPX

@misc{pith2026250811483,
  author       = {Pith},
  title        = {Pith review of: Exotic Heavy Hadrons},
  year         = {2026},
  howpublished = {\url{https://pith.science/paper/DTH24DPX}},
  note         = {Machine review of arXiv:2508.11483}
}
abstract

We review our recent findings on the structure and properties of exotic heavy hadrons, focusing on two main topics. First, we examine the role of correlations driven by the short-range Coulomb-like color interaction in hidden heavy-flavor pentaquarks. We show how this framework consistently accounts for the observed pattern of $P_c$ and $P_{cs}$ states in the hidden-charm sector and enables predictions for the hidden-bottom sector, where experimental data are still lacking. The second topic explores the possibility of forming stable multihadron molecules from deeply bound two-hadron exotic states. In this context, a bound state of three $B$ mesons, denoted as $T_{bbb}$, with quantum numbers $(I)J^P = (1/2)2^-$, is presented. We find that the binding energy generally decreases as the number of hadrons increases, primarily due to effects of the Pauli principle and the appearance of new decay thresholds. Nonetheless, resonances may still arise in specific cases, depending on the internal thresholds of the system. Finally, we discuss how the decay width of an exotic multihadron resonance can offer valuable insights into its internal structure and underlying~dynamics.

Figures

Figures reproduced from arXiv: 2508.11483 by the authors.

Figure 1
Figure 1. Color structure of a hidden-flavor pentaquark driven by Coulomb-like color correlations between the heavy quarks. Large red circles denote the heavy quark–antiquark (QQ¯) pair, while small green circles represent the light quarks. Bracketed numbers indicate the corresponding color quantum numbers [PITH_FULL_IMAGE:figures/full_fig_p004_1.png] view at source ↗
Figure 2
Figure 2. Diagrammatic representation of the Faddeev equations for the three-B-meson system [PITH_FULL_IMAGE:figures/full_fig_p016_2.png] view at source ↗
Figure 3
Figure 3. displays the results of our calculation. The solid blue lines correspond to the strong decay thresholds of the three-B-meson system BB∗B ∗−B ∗B ∗B ∗ with quantum num￾bers (I)J P = (1/2)2 −. These thresholds include the B ∗B ∗B ∗ , BB∗B ∗ , and TbbB ∗ channels. Dashed green lines indicate electromagnetic decay thresholds involving three B mesons, specifically the BBB∗ and BBB channels with quantum numbers (I)J P = (1… view at source ↗
Figures from the paper (5 more)
Figure 4
Figure 4. Figure 4: 5S2 ΩiΩi interaction for different values of the Gaussian parameter of the quark wave function, α. Additional support for these conclusions comes from preliminary lattice QCD studies of S-wave scattering between strangeness −3 baryons [161]. Conducted at a pion mass of…
Figure 5
Figure 5. Figure 5: Experimental masses [164] of the different color singlets that make up QQq¯ q¯ multi￾quarks with Q = s, c, or b for different sets of quantum numbers (I)J P . The reference energy has been set to the corresponding KK¯, DD¯ , and BB¯ mass for the hidden strange, charm, …
Figure 6
Figure 6. Figure 6: Experimental masses [164] of the different color singlets that make up selected QQqqq ¯ multiquarks with Q = c or b for different sets of quantum numbers J P . The reference energy has been set to the corresponding ΣcD¯ and ΣbB¯ mass for the hidden charm and bottom sec…
Figure 7
Figure 7. Figure 7: Diagrammatic representation of the modeled experimental scenario for B = 0. An analogous diagram applies to the B = 1 sector, with the substitution of [Qq¯][qQ¯] by [qQ¯][Qqq] and [QQ¯][qq¯] by [QQ¯][qqq]. See text for further details. Specifically, we model the system…
Figure 8
Figure 8. Figure 8: Variation in the resonance decay width Γ (in units of Γ0) as a function of its relative position between the formation and detection channels, expressed as ∆M0 − ∆E (in units of ∆M0). The purple circle marks the starting point corresponding to the configuration shown i…

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Works this paper leans on

168 extracted references · 79 canonical work pages

  1. [1]

    A Schematic Model of Baryons and Mesons

    Gell-Mann, M. A Schematic Model of Baryons and Mesons. Phys. Lett. 1964, 8, 214–215. [CrossRef]

  2. [2]

    Hybrid and conventional mesons in the flux tube model: Numerical studies and their phenomenological implications

    Barnes, T.; Close, F.E.; Swanson, E.S. Hybrid and conventional mesons in the flux tube model: Numerical studies and their phenomenological implications. Phys. Rev. D 1995, 52, 5242–5256. [CrossRef] [PubMed]

  3. [3]

    Multiquark hadrons

    Jaffe, R.L. Multiquark hadrons. I. Phenomenology of Q2 ¯Q2 mesons. Phys. Rev. D 1977, 15, 267–280. [CrossRef]

  4. [4]

    Multi-Quark Hadrons

    Jaffe, R.L. Multi-Quark Hadrons. 2. Methods. Phys. Rev. D 1977, 15, 281–289. [CrossRef]

  5. [5]

    Constituent quark model study of light- and strange-baryon spectra

    Valcarce, A.; Garcilazo, H.; Vijande, J. Constituent quark model study of light- and strange-baryon spectra. Phys. Rev. C 2005, 72, 025206. [CrossRef]

  6. [6]

    Evidence for the Two-Pole Structure of theΛ(1405) Resonance

    Magas, V .K.; Oset, E.; Ramos, A. Evidence for the Two-Pole Structure of theΛ(1405) Resonance. Phys. Rev. Lett. 2005, 95, 052301. [CrossRef]

  7. [7]

    Baryons in a relativized quark model with chromodynamics

    Capstick, S.; Isgur, N. Baryons in a relativized quark model with chromodynamics. Phys. Rev. D 1986, 34, 2809–2835. [CrossRef]

  8. [8]

    On the History of Dibaryons and their Final Observation

    Clement, H. On the History of Dibaryons and their Final Observation. Prog. Part. Nucl. Phys. 2017, 93, 195. [CrossRef]

Show all 168 references
  1. [9]

    Trilling, G. Reviews of Particle Physics edited by Eidelman, S., Hayes, K.G., Olive, K.E., Aguilar-Benitez, M., Amsler, C., Asner, D., Babu, K.S., Barnett, R.M., Beringer, J., Burchat, P .R., et al. Review of particle physics.Phys. Lett. B 2004, 592, 1–5

  2. [10]

    Do narrow heavy multiquark states exist? Phys

    Ader, J.-P .; Richard, J.-M.; Taxil, P . Do narrow heavy multiquark states exist? Phys. Rev. D 1982, 25, 2370. [CrossRef]

  3. [11]

    Chiral perturbation theory

    Pich, A. Chiral perturbation theory. Rep. Prog. Phys. 1995, 58, 563–610. [CrossRef]

  4. [12]

    Chiral unitary approach to meson meson and meson-baryon interactions and nuclear applications

    Oller, J.A.; Oset, E.; Ramos, A. Chiral unitary approach to meson meson and meson-baryon interactions and nuclear applications. Prog. Part. Nucl. Phys. 2000, 45, 157–242. [CrossRef]

  5. [13]

    Observation of an exotic narrow doubly charmed tetraquark

    Aaij, R.; Abdelmotteleb, A.S.W.; Abellán Beteta, C.; Abudinen Gallego, F.J.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Agapopoulou, C.; Aidala, C.A.; et al. Observation of an exotic narrow doubly charmed tetraquark. Nat. Phys. 2022, 18, 751–754. [CrossRef]

  6. [14]

    Study of the doubly charmed tetraquark T+cc

    Aaij, R.; Abdelmotteleb, A.S.W.; Abellán Beteta, C.; Abudinen Gallego, F.J.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Agapopoulou, C.; Aidala, C.A.; et al. Study of the doubly charmed tetraquark T+cc . Nat. Commun. 2022, 13, 3351

  7. [15]

    Jaffe, R.L. Exotica. Phys. Rep. 2005, 409, 1–45. [CrossRef]

  8. [16]

    The hidden-charm pentaquark and tetraquark states

    Chen, X.H.; Chen, W.; Liu, X.; Zhu, L.S. The hidden-charm pentaquark and tetraquark states. Phys. Rep. 2016, 639, 1–121. [CrossRef]

  9. [17]

    Issues and Opportunities in Exotic Hadrons

    Briceño, R.A.; Cohen, T.D.; Coito, S.; Dudek, J.J.; Eichten, E.; Fischer, C.S.; Fritsch, M.; Gradl, W.; Jackura, A.; Kornicer, M.; et al. Issues and Opportunities in Exotic Hadrons. Chin. Phys. C 2016, 40, 042001. [CrossRef]

  10. [18]

    Exotic hadrons: Review and perspectives

    Richard, J.-M. Exotic hadrons: Review and perspectives. Few Body Syst. 2016, 57, 1185–1212. [CrossRef]

  11. [19]

    Exotic hadrons with heavy flavors: X, Y, Z, and related states.Prog

    Hosaka, A.; Iijima, T.; Miyabayashi, K.; Sakai, Y.; Yasui, S. Exotic hadrons with heavy flavors: X, Y, Z, and related states.Prog. Theor. Exp. Phys. 2016, 062C01. [CrossRef]

  12. [20]

    A review of the open charm and open bottom systems

    Chen, H.-X.; Chen, W.; Liu, X.; Liu, Y.-R.; Zhu, S.-L. A review of the open charm and open bottom systems. Rep. Prog. Phys. 2017, 80, 076201. [CrossRef]

  13. [21]

    Heavy-Quark QCD Exotica

    Lebed, R.F.; Mitchell, R.E.; Swanson, E.S. Heavy-Quark QCD Exotica. Prog. Part. Nucl. Phys. 2017, 93, 143. [CrossRef]

  14. [22]

    Exotics: Heavy Pentaquarks and Tetraquarks

    Ali, A.; Lange, J.S.; Stone, S. Exotics: Heavy Pentaquarks and Tetraquarks. Prog. Part. Nucl. Phys. 2017, 97, 123–198. [CrossRef]

  15. [23]

    Multiquark Resonances

    Esposito, A.; Pilloni, A.; Polosa, A.D. Multiquark Resonances. Phys. Rep. 2017, 668, 1–97. [CrossRef]

  16. [24]

    Hadronic molecules

    Guo, F.-K.; Hanhart, C.; Meißner, U.-G.; Wang, Q.; Zhao, Q.; Zou, B.-S. Hadronic molecules. Rev. Mod. Phys. 2018, 90, 015004. [CrossRef]

  17. [25]

    Nonstandard heavy mesons and baryons: Experimental evidence

    Olsen, S.L.; Skwarnicki, T.; Zieminska, D. Nonstandard heavy mesons and baryons: Experimental evidence. Rev. Mod. Phys. 2018, 90, 015003. [CrossRef]

  18. [26]

    Multiquark States Ann

    Karliner, M.; Rosner, J.L.; Skwarnicki, T. Multiquark States Ann. Rev. Nucl. Part. Sci. 2018, 68, 17–44. [CrossRef]

  19. [27]

    The XYZ states: experimental and theoretical status and perspectives

    Brambilla, N.; Eidelman, S.; Hanhart, C.; Nefediev, A.; Shen, C.-P .; Thomas, C.E.; Vairo, A.; Yuan, C.-Z. The XYZ states: experimental and theoretical status and perspectives. Phys. Rep. 2020, 873, 1–154. [CrossRef]

  20. [28]

    Tetra- and penta-quark structures in the constituent quark model.Symmetry 2020, 12, 1869

    Yang, G.; Ping, J.; Segovia, J. Tetra- and penta-quark structures in the constituent quark model.Symmetry 2020, 12, 1869. [CrossRef]

  21. [29]

    Tetraquarks and Pentaquarks from Quark Model Perspective.Symmetry 2023, 15, 1298

    Huang, H.; Deng, C.; Liu, X.; Tan, Y .; Ping, J. Tetraquarks and Pentaquarks from Quark Model Perspective.Symmetry 2023, 15, 1298. [CrossRef]

  22. [30]

    Searching for beauty-fully bound tetraquarks using lattice nonrelativistic QCD

    Hughes, C.; Eichten, E.; Davies, C.T.H. Searching for beauty-fully bound tetraquarks using lattice nonrelativistic QCD. Phys. Rev. D 2018, 97, 054505. [CrossRef]

  23. [31]

    Lattice investigation of exotic tetraquark channels

    Hudspith, R.J.; Colquhoun, B.; Francis, A.; Lewis, R.; Maltman, K. Lattice investigation of exotic tetraquark channels. Phys. Rev. D 2020, 102, 114506. [CrossRef]

  24. [32]

    Improved analysis of strong-interaction-stable doubly bottom tetraquarks on the lattice

    Colquhoun, B.; Francis, A.; Hudspith, R.J.; Lewis, R.; Maltman, K.; Parrott, W.G. Improved analysis of strong-interaction-stable doubly bottom tetraquarks on the lattice. Phys. Rev. D 2024, 110, 094503. [CrossRef]

  25. [33]

    Systematics of L = 0 q2 ¯q2 systems

    Silvestre-Brac, B.; Semay, C. Systematics of L = 0 q2 ¯q2 systems. Z. Phys. C 1993, 57, 273–282. [CrossRef]

  26. [34]

    Few-body quark dynamics for doubly heavy baryons and tetraquarks

    Richard, J.-M.; Valcarce, A.; Vijande, J. Few-body quark dynamics for doubly heavy baryons and tetraquarks. Phys. Rev. C 2018, 97, 035211. [CrossRef] Symmetry 2025, 17, 1324 28 of 32

  27. [35]

    Constituent quark-model hidden-flavor pentaquarks

    Garcilazo, H.; Valcarce, A. Constituent quark-model hidden-flavor pentaquarks. Phys. Rev. D 2022, 105, 114016. [CrossRef]

  28. [36]

    Hidden-flavor pentaquarks

    Garcilazo, H.; Valcarce, A. Hidden-flavor pentaquarks. Phys. Rev. D 2022, 106, 114012. [CrossRef]

  29. [37]

    Most Strange Dibaryon from Lattice QCD

    Gongyo, S.; Sasaki, K.; Aoki, S.; Doi, T.; Hatsuda, T.; Ikeda, Y.; Inoue, T.; Iritani, T.; Ishii, N.; Miyamoto, T.; et al. Most Strange Dibaryon from Lattice QCD. Phys. Rev. Lett. 2018, 120, 212001. [CrossRef]

  30. [38]

    Deuteronlike Heavy Dibaryons from Lattice Quantum Chromodynamics.Phys

    Junnarkar, P .; Mathur, N. Deuteronlike Heavy Dibaryons from Lattice Quantum Chromodynamics.Phys. Rev. Lett. 2019, 123, 162003. [CrossRef]

  31. [39]

    Dibaryon with Highest Charm Number near Unitarity from Lattice QCD

    Lyu, Y.; Tong, H.; Sugiura, T.; Aoki, S.; Doi, T.; Hatsuda, T.; Meng, J.; Miyamoto, T. Dibaryon with Highest Charm Number near Unitarity from Lattice QCD. Phys. Rev. Lett. 2021, 127, 072003. [CrossRef]

  32. [40]

    Strongly Bound Dibaryon with Maximal Beauty Flavor from Lattice QCD

    Mathur, N.; Padmanath, M.; Chakraborty, D. Strongly Bound Dibaryon with Maximal Beauty Flavor from Lattice QCD. Phys. Rev. Lett. 2023, 130, 111901. [CrossRef]

  33. [41]

    Tbbb: A three B–meson bound state

    Garcilazo, H.; Valcarce, A. Tbbb: A three B–meson bound state. Phys. Lett. B 2018, 784, 169. [CrossRef]

  34. [42]

    Trimeson bound stateBBB ∗ via a delocalized π bond

    Ma, L.; Wang, Q.; Meissner, U.-G. Trimeson bound stateBBB ∗ via a delocalized π bond. Phys. Rev. D 2019, 100, 014028. [CrossRef]

  35. [43]

    Tribaryons with lattice QCD and one-boson exchange potentials.Phys

    Wu, T.-W.; Luo, S.-Q.; Liu, M.-Z.; Geng, L.-S.; Liu, X. Tribaryons with lattice QCD and one-boson exchange potentials.Phys. Rev. D 2023, 108, L091506. [CrossRef]

  36. [44]

    Ωbbb Ωbbb Ωbbb tribaryons

    Garcilazo, H.; Valcarce, A. Ωbbb Ωbbb Ωbbb tribaryons. Rev. Mex. Fis. 2024, 70, 041202. [CrossRef]

  37. [45]

    Pauli principle forbids Ωbbb Ωbbb Ωbbb bound states

    Garcilazo, H.; Valcarce, A. Pauli principle forbids Ωbbb Ωbbb Ωbbb bound states. Phys. Rev. D 2025, 111, 014035. [CrossRef]

  38. [46]

    Very Heavy Flavored Dibaryons

    Richard, J.-M.; Valcarce, A.; Vijande, J. Very Heavy Flavored Dibaryons. Phys. Rev. Lett. 2020, 124, 212001. [CrossRef] [PubMed]

  39. [47]

    Width of a two-body coupled-channel resonance

    Garcilazo, H.; Valcarce, A. Width of a two-body coupled-channel resonance. Eur. Phys. J. C 2018, 78, 259. [CrossRef]

  40. [48]

    (I, JP) = (1, 1/2+) ΣNN Quasibound State

    Garcilazo, H.; Valcarce, A. (I, JP) = (1, 1/2+) ΣNN Quasibound State. Symmetry 2022, 14, 2381. [CrossRef]

  41. [49]

    Observation of J/Ψp Resonances Consistent with Pentaquark States in Λ0 → J/ΨK− p Decays

    Aaij, R.; Adeva, B.; Adinolfi, M.; Affolder, A.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; et al. Observation of J/Ψp Resonances Consistent with Pentaquark States in Λ0 → J/ΨK− p Decays. Phys. Rev. Lett. 2015, 115, 072001. [CrossRef]

  42. [50]

    Observation of a Narrow Pentaquark State Pc(4312)+, and of the Two-Peak Structure of the Pc(4450)+

    Aaij, R.; Abellán Beteta, C.; Adeva, B.; Adinolfi, M.; Aidala, C.A.; Ajaltouni, Z.; Akar, S.; Albicocco, P .; Albrecht, J.; Alessio, F.; et al. Observation of a Narrow Pentaquark State Pc(4312)+, and of the Two-Peak Structure of the Pc(4450)+. Phys. Rev. Lett. 2019, 122, 22200...

  43. [51]

    Observation of a J/ΨΛ Resonance Consistent with a Strange Pentaquark Candidate in B− → J/ΨΛ ¯p Decays

    Aaij, R.; Abdelmotteleb, A.S.W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Adlarson, P .; Afsharnia, H.; Agapopoulou, C.; et al. Observation of a J/ΨΛ Resonance Consistent with a Strange Pentaquark Candidate in B− → J/ΨΛ ¯p Decays. Phys. Rev. Le...

  44. [52]

    Evidence of a J/ΨΛ structure and observation of excited Ξ− states in the Ξ− b → J/ΨΛK− decay

    Aaij, R.; Abellán Beteta, C.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Aidala, C.A.; Aiola, S.; Ajaltouni, Z.; Akar, S.; et al. Evidence of a J/ΨΛ structure and observation of excited Ξ− states in the Ξ− b → J/ΨΛK− decay. Sci. Bull. 2021, 66, 1278–1287

  45. [53]

    Search for a pentaquark state decaying into pJ /Ψ in Υ(1, 2S) inclusive decays at Belle

    Dong, X.; Zou, S.M.; Zhang, H.Y.; Wang, X.L.; Adachi, I.; Ahn, J.K.; Aihara, H.; Al Said, S.; Asner, D.M.; Atmacan, H.; Ayad, R.; et al. Search for a pentaquark state decaying into pJ /Ψ in Υ(1, 2S) inclusive decays at Belle. arXiv 2024, arXiv:2403.04340

  46. [54]

    Search for Pc ¯cs(4459)0 and Pc ¯cs(4338)0 in Υ(1S, 2S) inclusive decays at Belle

    Adachi, I.; Aggarwal, L.; Ahmed, H.; Ahn, J.K.; Aihara, H.; Akopov, N.; Alhakami, M.; Aloisio, A.; Althubiti, N.; Asner, D.M.; et al. Search for Pc ¯cs(4459)0 and Pc ¯cs(4338)0 in Υ(1S, 2S) inclusive decays at Belle. arXiv 2025, arXiv:2502.09951. [CrossRef]

  47. [55]

    Diquarks

    Anselmino, M.; Predazzi, E.; Ekelin, S.; Fredriksson, S.; Lichtenberg, D.B. Diquarks. Rev. Mod. Phys. 1993, 65, 1199–1234. [CrossRef]

  48. [56]

    Diquark Deuteron

    Fredriksson, S.; Jandel, M. Diquark Deuteron. Phys. Rev. Lett. 1982, 48, 14. [CrossRef]

  49. [57]

    The New Pentaquarks in the Diquark Model

    Maiani, L.; Polosa, A.D.; Riquer, V . The New Pentaquarks in the Diquark Model. Phys. Lett. B 2015, 749, 289–291. [CrossRef]

  50. [58]

    The Dynamical Diquark Model: First Numerical Results

    Giron, J.F.; Lebed, R.F.; Peterson, C.T. The Dynamical Diquark Model: First Numerical Results. J. High Energy Phys. 2019, 05, 061. [CrossRef]

  51. [59]

    Mass spectrum of the hidden-charm pentaquarks in the compact diquark model

    Ali, A.; Ahmed, I.; Aslam, M.J.; Parkhomenko, A.Y.; Rehman, A. Mass spectrum of the hidden-charm pentaquarks in the compact diquark model. J. High Energy Phys. 2019, 10, 256. [CrossRef]

  52. [60]

    Hidden charm pentaquark states in a diquark model

    Shi, P .-P .; Huang, F.; Wang, W.-L. Hidden charm pentaquark states in a diquark model. Eur. Phys. J. A 2021, 57, 237. [CrossRef]

  53. [61]

    Hidden-charm pentaquarks and their hidden-bottom andBc-like partner states

    Wu, J.; Liu, Y.-R.; Chen, K.; Liu, X.; Zhu, S.-L. Hidden-charm pentaquarks and their hidden-bottom andBc-like partner states. Phys. Rev. D 2017, 95, 034002. [CrossRef]

  54. [62]

    Spectroscopy, lifetime and decay modes of theT− bb tetraquark

    Hernández, E.; Vijande, J.; Valcarce, A.; Richard, J.-M. Spectroscopy, lifetime and decay modes of theT− bb tetraquark. Phys. Lett. B 2020, 800, 135073. [CrossRef]

  55. [63]

    Stable double-heavy tetraquarks: spectrum and structure

    Meng, Q.; Hiyama, E.; Hosaka, A.; Oka, M.; Gubler, P .; Can, K.U.; Takahashi, T.T.; Zong, H.S. Stable double-heavy tetraquarks: spectrum and structure. Phys. Lett. B 2021, 814, 136095. [CrossRef]

  56. [64]

    Diquonia and potential models

    Semay, C.; Silvestre-Brac, B. Diquonia and potential models. Z. Phys. C 1994, 61, 271–275. [CrossRef]

  57. [65]

    The Tcc = DD ∗ Molecular State

    Janc, D.; Rosina, M. The Tcc = DD ∗ Molecular State. Few-Body Syst. 2004, 35, 175–196. [CrossRef]

  58. [66]

    Stable heavy pentaquarks in constituent models.Phys

    Richard, J.-M.; Valcarce, A.; Vijande, J. Stable heavy pentaquarks in constituent models.Phys. Lett. B 2017, 774, 710–714. [CrossRef]

  59. [67]

    Quark model estimate of hidden-charm pentaquark resonances

    Hiyama, E.; Hosaka, A.; Oka, M.; Richard, J.-M. Quark model estimate of hidden-charm pentaquark resonances. Phys. Rev. C 2018, 98, 045208. [CrossRef] Symmetry 2025, 17, 1324 29 of 32

  60. [68]

    Compactsss ¯c pentaquark states predicted by a quark model

    Meng, Q.; Hiyama, E.; Can, K.U.; Gubler, P .; Oka, M.; Hosaka, A.; Zong, H. Compactsss ¯c pentaquark states predicted by a quark model. Phys. Lett. B 2019, 798, 135028. [CrossRef]

  61. [69]

    Spectrum and static properties of heavy baryons

    Silvestre-Brac, B. Spectrum and static properties of heavy baryons. Few Body Syst. 1996, 20, 1–25. [CrossRef]

  62. [70]

    A Numerical algorithm for the explicit calculation of SU(N) and SL(N, C) Clebsch-Gordan coefficients

    Alex, A.; Kalus, M.; Huckleberry, A.; von Delft, J. A Numerical algorithm for the explicit calculation of SU(N) and SL(N, C) Clebsch-Gordan coefficients. J. Math. Phys. 2011, 52, 023507. [CrossRef]

  63. [71]

    Tetraquarks in a chiral constituent quark model.Eur

    Vijande, J.; Fernández, F.; Valcarce, A.; Silvestre-Brac, B. Tetraquarks in a chiral constituent quark model.Eur. Phys. J. A 2004, 19, 383. [CrossRef]

  64. [72]

    Possible pentaquarks with heavy quarks

    Huang, H.; Deng, C.; Ping, J.; Wang, F. Possible pentaquarks with heavy quarks. Eur. Phys. J. C 2016, 76, 624. [CrossRef]

  65. [73]

    Structure of pentaquarks P+c in the chiral quark model

    Yang, G.; Ping, J.; Wang, F. Structure of pentaquarks P+c in the chiral quark model. Phys. Rev. D 2017, 95, 014010. [CrossRef]

  66. [74]

    Nuclear Force in a Quark Model

    Oka, M.; Yazaki, K. Nuclear Force in a Quark Model. Phys. Lett. B 1980, 90, 41–44. [CrossRef]

  67. [75]

    Inevitable

    Goldman, T.; Maltman, K.; Stephenson, G.J.; Schmidt, K.E., Jr.; Wang, F. “Inevitable” nonstrange dibaryon.Phys. Rev. C 1989, 39, 1889. [CrossRef]

  68. [76]

    ∆∆ and ∆∆∆ bound states

    Valcarce, A.; Garcilazo, H.; Mota, R.D.; Fernández, F. ∆∆ and ∆∆∆ bound states. J. Phys. G 2001, 27, L1–L7. [CrossRef]

  69. [77]

    Quark-model study of few-baryon systems.Rep

    Valcarce, A.; Garcilazo, H.; Fernández, F.; González, P . Quark-model study of few-baryon systems.Rep. Prog. Phys. 2005, 68, 965–1042. [CrossRef]

  70. [78]

    Phenomenological study of hadron interaction models

    Pang, H.R.; Ping, J.L.; Wang, F.; Goldman, T. Phenomenological study of hadron interaction models. Phys. Rev. C 2001, 65, 014003. [CrossRef]

  71. [79]

    The Interplay between Compact and Molecular Structures in Tetraquarks

    Sazdjian, H. The Interplay between Compact and Molecular Structures in Tetraquarks. Symmetry 2022, 14, 515. [CrossRef]

  72. [80]

    Discovery of the Doubly CharmedΞcc Baryon Implies a Stable bb ¯u ¯d Tetraquark

    Karliner, M.; Rosner, J.L. Discovery of the Doubly CharmedΞcc Baryon Implies a Stable bb ¯u ¯d Tetraquark. Phys. Rev. Lett. 2017, 119, 202001. [CrossRef]

  73. [81]

    Heavy-Quark Symmetry Implies Stable Heavy Tetraquark Mesons QiQj ¯qk ¯ql

    Eichten, E.J.; Quigg, C. Heavy-Quark Symmetry Implies Stable Heavy Tetraquark Mesons QiQj ¯qk ¯ql. Phys. Rev. Lett. 2017, 119, 202002. [CrossRef] [PubMed]

  74. [82]

    Scattering Theory for a Three-Particle System

    Faddeev, L.D. Scattering Theory for a Three-Particle System. Sov. Phys. JETP 1961, 12, 1014–1019

  75. [83]

    Mathematical Aspects of the Three-Body Problem in Quantum Scattering Theory ; Daley: New York, NY, USA, 1965

    Faddeev, L.D. Mathematical Aspects of the Three-Body Problem in Quantum Scattering Theory ; Daley: New York, NY, USA, 1965

  76. [84]

    Momentum-space Faddeev calculations for confining potentials

    Garcilazo, H. Momentum-space Faddeev calculations for confining potentials. Phys. Rev. C 2003, 67, 055203. [CrossRef]

  77. [85]

    Diquark properties from full QCD lattice simulations.J

    Francis, A.; de Forcrand, P .; Lewis, R.; Maltman, K. Diquark properties from full QCD lattice simulations.J. High Energy Phys. 2022, 05, 062. [CrossRef]

  78. [86]

    Searching for diquarks in hadrons

    Alexandrou, C.; de Forcrand, P .; Lucini, B. Searching for diquarks in hadrons. Proc. Sci. 2006, 053, LAT2005

  79. [87]

    Spatial diquark correlations in a hadron

    Green, J.; Negele, J.; Engelhardt, M.; Varilly, P . Spatial diquark correlations in a hadron. Proc. Sci. Lattice 2010, 2010, 140

  80. [88]

    Spectrum of the strange hidden charm molecular pentaquarks in chiral effective field theory

    Wang, B.; Meng, L.; Zhu, S.-L. Spectrum of the strange hidden charm molecular pentaquarks in chiral effective field theory. Phys. Rev. D 2020, 101, 034018. [CrossRef]

  81. [89]

    Investigation of hidden-charm pentaquarks with strangeness S = −1

    Hu, X.; Ping, J. Investigation of hidden-charm pentaquarks with strangeness S = −1. Eur. Phys. J. C 2022, 82, 118. [CrossRef]

  82. [90]

    Hidden-charm and bottom tetra- and pentaquarks with strangeness in the hadro-quarkonium and compact tetraquark models

    Ferretti, J.; Santopinto, E. Hidden-charm and bottom tetra- and pentaquarks with strangeness in the hadro-quarkonium and compact tetraquark models. J. High Energy Phys. 2020, 04, 119. [CrossRef]

  83. [91]

    Hidden-bottom pentaquarks

    Yang, G.; Ping, J.; Segovia, J. Hidden-bottom pentaquarks. Phys. Rev. D 2019, 99, 014035. [CrossRef]

  84. [92]

    The baryo-quarkonium picture for hidden-charm and bottom pentaquarks and LHCb Pc(4380) and Pc(4450) states

    Ferretti, J.; Santopinto, E.; Anwar, M.N.; Bedolla, M.A. The baryo-quarkonium picture for hidden-charm and bottom pentaquarks and LHCb Pc(4380) and Pc(4450) states. Phys. Lett. B 2019, 789, 562–567. [CrossRef]

  85. [93]

    Pentaquark states in a diquark–triquark model

    Zhu, R.; Qiao, C.-F. Pentaquark states in a diquark–triquark model. Phys. Lett. B 2016, 756, 259–264. [CrossRef]

  86. [94]

    Prediction of narrow N∗ and Λ∗ resonances with hidden charm above 4 GeV .Phys

    Wu, J.-J.; Molina, R.; Oset, E.; Zou, S.B. Prediction of narrow N∗ and Λ∗ resonances with hidden charm above 4 GeV .Phys. Rev. Lett. 2010, 105, 232001. [CrossRef] [PubMed]

  87. [95]

    Σc ¯D and Λc ¯D states in a chiral quark model

    Wang, W.L.; Huang, F.; Zhang, Z.Y.; Zou, B.S. Σc ¯D and Λc ¯D states in a chiral quark model. Phys. Rev. C 2011, 84, 015203. [CrossRef]

  88. [96]

    The possible hidden-charm molecular baryons composed of anti-charmed meson and charmed baryon

    Yang, Z.-C.; Sun, Z.-F.; He, J.; Liu, X.; Zhu, S.-L. The possible hidden-charm molecular baryons composed of anti-charmed meson and charmed baryon. Chin. Phys. C 2012, 36, 6–13. [CrossRef]

  89. [97]

    Nucleon resonances with hidden charm in coupled-channels models.Phys

    Wu, J.-J.; Lee, T.-S.H.; Zou, B.S. Nucleon resonances with hidden charm in coupled-channels models.Phys. Rev. C 2012, 85, 044002. [CrossRef]

  90. [98]

    Combining heavy quark spin and local hidden gauge symmetries in the dynamical generation of hidden charm baryons

    Xiao, C.W.; Nieves, J.; Oset, E. Combining heavy quark spin and local hidden gauge symmetries in the dynamical generation of hidden charm baryons. Phys. Rev. D 2013, 88, 056012. [CrossRef]

  91. [99]

    Hidden-charm and bottom meson-baryon molecules coupled with five-quark states

    Yamaguchi, Y.; Giachino, A.; Hosaka, A.; Santopinto, E.; Takeuchi, S.; Takizawa, M. Hidden-charm and bottom meson-baryon molecules coupled with five-quark states. Phys. Rev. D 2017, 96, 114031. [CrossRef]

  92. [100]

    Dynamically generated N∗ and Λ∗ resonances in the hidden charm sector around 4.3 GeV

    Wu, J.-J.; Molina, R.; Oset, E.; Zou, B.S. Dynamically generated N∗ and Λ∗ resonances in the hidden charm sector around 4.3 GeV . Phys. Rev. C 2011, 84, 015202. [CrossRef]

  93. [101]

    Narrow nucleon-Ψ(2S) bound state and LHCb pentaquarks.Phys

    Eides, M.I.; Petrov , V .Y .; Polyakov , M.V . Narrow nucleon-Ψ(2S) bound state and LHCb pentaquarks.Phys. Rev. D 2016, 93, 054039. [CrossRef] Symmetry 2025, 17, 1324 30 of 32

  94. [102]

    New Exotic Meson and Baryon Resonances from Doubly Heavy Hadronic Molecules.Phys

    Karliner, M.; Rosner, J.L. New Exotic Meson and Baryon Resonances from Doubly Heavy Hadronic Molecules.Phys. Rev. Lett. 2015, 115, 122001. [CrossRef]

  95. [103]

    Evidence supporting the existence ofPc(4380)± from the recent measurements of Bs → J/Ψp ¯p

    Wang, J.-Z.; Liu, X.; Matsuki, T. Evidence supporting the existence ofPc(4380)± from the recent measurements of Bs → J/Ψp ¯p. Phys. Rev. D 2021, 104, 114020. [CrossRef]

  96. [104]

    Nuclear-bound quarkonium

    Brodsky, S.J.; Schmidt, I.; de Teramond, G.F. Nuclear-bound quarkonium. Phys. Rev. Lett. 1990, 64, 1011. [CrossRef]

  97. [105]

    Exploring the molecular scenario of Pc(4312), Pc(4440) and Pc(4457)

    Xiao, C.-J.; Huang, Y.; Dong, Y.-B.; Geng, L.-S.; Chen, D.-Y. Exploring the molecular scenario of Pc(4312), Pc(4440) and Pc(4457). Phys. Rev. D 2019, 100, 014022. [CrossRef]

  98. [106]

    Decay behaviors of possibleΛc¯c states in hadronic molecule pictures.Phys

    Shen, C.-W.; Wu, J.-J.; Zou, B.-S. Decay behaviors of possibleΛc¯c states in hadronic molecule pictures.Phys. Rev. D 2019, 100, 056006. [CrossRef]

  99. [107]

    Probing new types ofPc states inspired by the interaction between an S-wave charmed baryon and an anticharmed meson in a ¯T doublet state

    Wang, F.-L.; Chen, R.; Liu, Z.-W.; Liu, X. Probing new types ofPc states inspired by the interaction between an S-wave charmed baryon and an anticharmed meson in a ¯T doublet state. Phys. Rev. C 2020, 101, 025201. [CrossRef]

  100. [108]

    Phenomenology of Pc(4380)+, Pc(4450)+ and related states

    Burns, T.J. Phenomenology of Pc(4380)+, Pc(4450)+ and related states. Eur. Phys. J. A 2015, 51, 152. [CrossRef]

  101. [109]

    LHCb pentaquarks as a baryon-Ψ(2S) bound state: Prediction of isospin-3/2 pentaquarks with hidden charm

    Perevalova, I.A.; Polyakov, M.V .; Schweitzer, P . LHCb pentaquarks as a baryon-Ψ(2S) bound state: Prediction of isospin-3/2 pentaquarks with hidden charm. Phys. Rev. D 2016, 94, 054024. [CrossRef]

  102. [110]

    Hidden-charm pentaquarks and Pc states

    Weng, X.-Z.; Chen, X.-L.; Deng, W.-Z.; Zhu, S.-L. Hidden-charm pentaquarks and Pc states. Phys. Rev. D 2019, 100, 016014. [CrossRef]

  103. [111]

    Maiani, L.; Piccinini, F.; Polosa, A.D.; Riquer, V .Z(4430) and a new paradigm for spin interactions in tetraquarks. Phys. Rev. D 2014, 89, 114010. [CrossRef]

  104. [112]

    Analysis of P+c (4380) andd P+c (4450) as pentaquark states in the molecular picture with QCD sum rules

    Azizi, K.; Sarac, Y.; Sundu, H. Analysis of P+c (4380) andd P+c (4450) as pentaquark states in the molecular picture with QCD sum rules. Phys. Rev. D 2017, 95, 094016. [CrossRef]

  105. [113]

    Strong LHCb evidence supporting the existence of the hidden-charm molecular pentaquarks

    Chen, R.; Sun, Z.-F.; Liu, X.; Zhu, S.-L. Strong LHCb evidence supporting the existence of the hidden-charm molecular pentaquarks. Phys. Rev. D 2019, 100, 011502. [CrossRef]

  106. [114]

    Exploring Σc ¯D state: With focus on Pc(4312)+

    Zhang, J.-R. Exploring Σc ¯D state: With focus on Pc(4312)+. Eur. Phys. J. C 2019, 79, 1001. [CrossRef]

  107. [115]

    Analysis of hidden-charm pentaquark molecular states with and without strangeness via the QCD sum rules

    Wang, Z.-G.; Xin, Q. Analysis of hidden-charm pentaquark molecular states with and without strangeness via the QCD sum rules. Chin. Phys. C 2021, 45, 123105. [CrossRef]

  108. [116]

    Hidden-charm pentaquarks with color-octet substructure in QCD sum rules.Phys

    Pimikov, A.; Lee, H.-J.; Zhang, P . Hidden-charm pentaquarks with color-octet substructure in QCD sum rules.Phys. Rev. D 2020, 101, 014002. [CrossRef]

  109. [117]

    Modern status of heavy quark sum rules in QCD

    Narison, S. Modern status of heavy quark sum rules in QCD. Nucl. Part. Phys. Proc. 2021, 312–317, 87–93. [CrossRef]

  110. [118]

    Hidden-charm and hidden-bottom molecular pentaquarks in chiral effective field theory.J

    Wang, B.; Meng, L.; Zhu, S.-L. Hidden-charm and hidden-bottom molecular pentaquarks in chiral effective field theory.J. High Energy Phys. 2019, 11, 108. [CrossRef]

  111. [119]

    Hidden charm pentaquark states and Σc ¯D(∗) interaction in chiral perturbation theory

    Meng, L.; Wang, B.; Wang, G.-J.; Zhu, S.-L. Hidden charm pentaquark states and Σc ¯D(∗) interaction in chiral perturbation theory. Phys. Rev. D 2019, 100, 014031. [CrossRef]

  112. [120]

    Hidden-charm pentaquarks as a meson-baryon molecule with coupled channels for ¯D(∗)Λc and ¯D(∗)Σ(∗) c

    Yamaguchi, Y.; Santopinto, E. Hidden-charm pentaquarks as a meson-baryon molecule with coupled channels for ¯D(∗)Λc and ¯D(∗)Σ(∗) c . Phys. Rev. D 2017, 96, 014018. [CrossRef]

  113. [121]

    Coupled-channel effects of the Σ(∗) c ¯D(∗) − Λc(2595) ¯D system and molecular nature of the Pc pentaquark states from one-boson exchange model

    Yalikun, N.; Lin, Y.-H.; Guo, F.-K.; Kamiya, Y.; Zou, B.-S. Coupled-channel effects of the Σ(∗) c ¯D(∗) − Λc(2595) ¯D system and molecular nature of the Pc pentaquark states from one-boson exchange model. Phys. Rev. D 2021, 104, 094039. [CrossRef]

  114. [122]

    Hidden-Charm Pentaquarks with Strangeness in a Chiral Quark Model

    Yang, G.; Ping, J.; Segovia, J. Hidden-Charm Pentaquarks with Strangeness in a Chiral Quark Model. Symmetry 2024, 16, 354. [CrossRef]

  115. [123]

    Pentaquarks with anticharm or beauty revisited.Phys

    Richard, J.-M.; Valcarce, A.; Vijande, J. Pentaquarks with anticharm or beauty revisited.Phys. Lett. B 2019, 790, 248–250. [CrossRef]

  116. [124]

    Hadro-Charmonium

    Dubynskiy, S.; Voloshin, M.B. Hadro-Charmonium. Phys. Lett. B 2008, 666, 344–346. [CrossRef]

  117. [125]

    J/Ψ-nuclear bound states

    Tsushima, K.; Lu, D.H.; Krein, G.; Thomas, A.W. J/Ψ-nuclear bound states. Phys. Rev. C 2011, 83, 065208. [CrossRef]

  118. [126]

    ηc-nucleus bound states

    Cobos-Martínez, J.J.; Tsushima, K.; Krein, G.; Thomas, A.W. ηc-nucleus bound states. Phys. Lett. B 2020, 811, 135882. [CrossRef]

  119. [127]

    Proof of stability of the hydrogen molecule

    Richard, J.-M.; Fröhlich, J.; Graf, G.-M.; Seifert, M. Proof of stability of the hydrogen molecule. Phys. Rev. Lett. 1993, 71, 1332. [CrossRef] [PubMed]

  120. [128]

    Lattice Prediction for Deeply Bound Doubly Heavy Tetraquarks

    Francis, A.; Hudspith, R.J.; Lewis, R.; Maltman, K. Lattice Prediction for Deeply Bound Doubly Heavy Tetraquarks. Phys. Rev. Lett. 2017, 118, 142001. [CrossRef] [PubMed]

  121. [129]

    Bicudo, P .; Cichy , K.; Peters, A.; Wagner, M.BB interactions with static bottom quarks from lattice QCD.Phys. Rev. D 2016, 93, 034501. [CrossRef]

  122. [130]

    Study of doubly heavy tetraquarks in lattice QCD

    Junnarkar, P .; Mathur, N.; Padmanath, M. Study of doubly heavy tetraquarks in lattice QCD. Phys. Rev. D 2019, 99, 034507. [CrossRef]

  123. [131]

    Exotic tetraquark states with theqq ¯Q ¯Q configuration.Eur

    Luo, S.-Q.; Chen, K.; Liu, X.; Liu, Y .-R.; Zhu, S.-L. Exotic tetraquark states with theqq ¯Q ¯Q configuration.Eur. Phys. J. C 2017, 77, 709. [CrossRef]

  124. [132]

    Exotic QQ ¯q ¯q, QQ ¯q¯s, QQ ¯s¯s states

    Du, M.-L.; Chen, W.; Chen, X.-L.; Zhu, S.-L. Exotic QQ ¯q ¯q, QQ ¯q¯s, QQ ¯s¯s states. Phys. Rev. D 2013, 87, 014003. [CrossRef]

  125. [133]

    Stability of tetrons

    Czarnecki, A.; Leng, B.; Voloshin, M.B. Stability of tetrons. Phys. Lett. B 2018, 778, 233–238. [CrossRef] Symmetry 2025, 17, 1324 31 of 32

  126. [134]

    Exotic meson-meson molecules and compact four-quark states

    Vijande, J.; Valcarce, A.; Barnea, N. Exotic meson-meson molecules and compact four-quark states. Phys. Rev. D 2009, 79, 074010. [CrossRef]

  127. [135]

    On the Fractional Parentage Expansions of Color Singlet Six Quark States in a Cluster Model.Nucl

    Harvey , M. On the Fractional Parentage Expansions of Color Singlet Six Quark States in a Cluster Model.Nucl. Phys. 1981, 352, 301. [CrossRef]

  128. [136]

    Probabilities in nonorthogonal bases: Four-quark systems

    Vijande, J.; Valcarce, A. Probabilities in nonorthogonal bases: Four-quark systems. Phys. Rev. C 2009, 80, 035204. [CrossRef]

  129. [137]

    Too many X′s, Y′s and Z′s? Phys

    Caramés, T.F.; Valcarce, A.; Vijande, J. Too many X′s, Y′s and Z′s? Phys. Lett. B 2012, 709, 358–361. [CrossRef]

  130. [138]

    Charmed tetraquarks Tcc and Tcs from dynamical lattice QCD simulations

    Ikeda, Y.; Charron, B.; Aoki, S.; Doi, T.; Hatsuda, T.; Inoue, T.; Ishii, N.; Murano, K.; Nemura, H.; Sasaki, K. Charmed tetraquarks Tcc and Tcs from dynamical lattice QCD simulations. Phys. Lett. B 2014, 729, 85–90. [CrossRef]

  131. [139]

    Possible large deuteronlike meson-meson states bound by pions

    Törnqvist, N.A. Possible large deuteronlike meson-meson states bound by pions. Phys. Rev. Lett. 1991, 67, 556. [CrossRef]

  132. [140]

    Exotic QQ ¯q ¯q states in QCD

    Manohar, A.V .; Wise, M.B. Exotic QQ ¯q ¯q states in QCD. Nucl. Phys. B 1993, 399, 17–33. [CrossRef]

  133. [141]

    Strength of pion exchange in hadronic molecules

    Ericson, T.E.O.; Karl, G. Strength of pion exchange in hadronic molecules. Phys. Lett. B 1993, 309, 426–430. [CrossRef]

  134. [142]

    Novel charmonium and bottomonium spectroscopies due to deeply bound hadronic molecules from single pion exchange

    Close, F.; Downum, C.; Thomas, C.E. Novel charmonium and bottomonium spectroscopies due to deeply bound hadronic molecules from single pion exchange. Phys. Rev. D 2010, 81, 074033. [CrossRef]

  135. [143]

    Juriˇ c; Bohm, G.; Klabuhn, J.; Krecker, U.; Wysotzki, F.; Coremans-Bertrand, G.; Sacton, J.; Wilquet, G.; Cantwell, T.; Esmael, F.; et al

    M. Juriˇ c; Bohm, G.; Klabuhn, J.; Krecker, U.; Wysotzki, F.; Coremans-Bertrand, G.; Sacton, J.; Wilquet, G.; Cantwell, T.; Esmael, F.; et al. A new determination of the binding-energy values of the light hypernuclei (A ≤ 15). Nucl. Phys. B 1973, 52, 1–30. [CrossRef]

  136. [144]

    Observation of 4 ΛH Hyperhydrogen by Decay-Pion Spectroscopy in Electron Scattering

    Esser, A.; Nagao, S.; Schulz, F.; Achenbach, P .; Ayerbe Gayoso, C.; Böhm, R.; Borodina, O.; Bosnar, D.; Bozkurt, V .; Debenjak, L.; et al. Observation of 4 ΛH Hyperhydrogen by Decay-Pion Spectroscopy in Electron Scattering. Phys. Rev. Lett. 2015, 114, 232501. [CrossRef]

  137. [145]

    Three-body systems with open flavor heavy mesons

    Garcilazo, H.; Valcarce, A.; Caramés, T.F. Three-body systems with open flavor heavy mesons. Phys. Rev. D 2017, 96, 074009. [CrossRef]

  138. [146]

    Three-body resonances in two-meson–one-baryon systems.Phys

    Martínez Torres, A.; Khemchandani, K.P .; Oset, E. Three-body resonances in two-meson–one-baryon systems.Phys. Rev. C 2008, 77, 042203. [CrossRef]

  139. [147]

    Few-body systems consisting of mesons

    Martínez Torres, A.; Khemchandani, K.P .; Roca, L.; Oset, E. Few-body systems consisting of mesons. Few Body Syst. 2020, 61, 35. [CrossRef]

  140. [148]

    Masses and Regge trajectories of triply heavy Ωccc and Ωbbb baryons

    Shah, Z.; Kumar-Rai, A. Masses and Regge trajectories of triply heavy Ωccc and Ωbbb baryons. Eur. Phys. J. A 2017, 53, 195. [CrossRef]

  141. [149]

    Systematics of Q ¯q4 systems with a pure chromomagnetic interaction

    Leandri, J.; Silvestre-Brac, B. Systematics of Q ¯q4 systems with a pure chromomagnetic interaction. Phys. Rev. D 1989, 40, 2340. [CrossRef]

  142. [150]

    Hiyama, E.; Pavon Valderrama, M.DK, DDK, and DDDK molecules–understanding the nature of the D∗ s0(2317)

    Wu, T.-W.; Liu, M.-Z.; Geng, L.-S. Hiyama, E.; Pavon Valderrama, M.DK, DDK, and DDDK molecules–understanding the nature of the D∗ s0(2317). Phys. Rev. D 2019, 100, 034029

  143. [151]

    Exploring the Efimov effect in the D∗D∗D∗ system

    Ortega, P .G. Exploring the Efimov effect in the D∗D∗D∗ system. Phys. Rev. D 2024, 110, 034015. [CrossRef]

  144. [152]

    Bound states of∆∆ and ∆∆∆ systems

    Garcilazo, H.; Fernández, F.; Valcarce, A.; Mota, R.D. Bound states of∆∆ and ∆∆∆ systems. Phys. Rev. C 1997, 56, 84. [CrossRef]

  145. [153]

    Nonexistence of ΛNN and ΣNN bound states

    Garcilazo, H. Nonexistence of ΛNN and ΣNN bound states. J. Phys. G 1987, 13, L63–L67. [CrossRef]

  146. [154]

    Hyperon-Nucleon and Hyperon-Hyperon Interaction in a Quark Model

    Oka, M.; Shimizu, K.; Yazaki, K. Hyperon-Nucleon and Hyperon-Hyperon Interaction in a Quark Model. Nucl. Phys. A 1987, 464, 700–716. [CrossRef]

  147. [155]

    Short-range part of the nuclear force

    Liberman, D.A. Short-range part of the nuclear force. Phys. Rev. D 1977, 16, 1542. [CrossRef]

  148. [156]

    Baryon baryon interaction from quark model viewpoint

    Oka, M.; Yazaki, K. Baryon baryon interaction from quark model viewpoint. Int. Rev. Nucl. Phys. 1984, 1, 489–567

  149. [157]

    Short Range Part of Baryon Baryon Interaction in a Quark Model

    Oka, M.; Yazaki, K. Short Range Part of Baryon Baryon Interaction in a Quark Model. 1. Formulation. Prog. Theor. Phys. 1981, 66, 556–571. [CrossRef]

  150. [158]

    Short Range Part of Baryon Baryon Interaction in a Quark Model

    Oka, M.; Yazaki, K. Short Range Part of Baryon Baryon Interaction in a Quark Model. 2. Numerical Results for S-Wave Prog. Theor. Phys. 1981, 66, 572–587. [CrossRef]

  151. [159]

    Charmed baryon–nucleon interaction

    Garcilazo, H.; Valcarce, A.; Caramés, T.F. Charmed baryon–nucleon interaction. Eur. Phys. J. C 2019, 79, 598. [CrossRef]

  152. [160]

    Pion-assisted charmed dibaryon candidate

    Gal, A.; Garcilazo, H.; Valcarce, A.; Fernández-Caramés, T. Pion-assisted charmed dibaryon candidate. Phys. Rev. D 2014, 90, 014019. [CrossRef]

  153. [161]

    S-wave scattering of strangeness −3 baryons

    Buchoff, M.I.; Luu, T.C.; Wasem, J. S-wave scattering of strangeness −3 baryons. Phys. Rev. D 2012, 85, 094511. [CrossRef]

  154. [162]

    Pentaquark and Tetraquark states.Prog

    Liu, Y.-R.; Chen, H.-X.; Chen, W.; Liu, X.; Zhu, S.-L. Pentaquark and Tetraquark states.Prog. Part. Nucl. Phys. 2019, 107, 237–320. [CrossRef]

  155. [163]

    K ¯K molecules

    Weinstein, J.D.; Isgur, N. K ¯K molecules. Phys. Rev. D 1990, 41, 2236. [CrossRef]

  156. [164]

    Review of Particle Physics

    Navas, S.; Amsler, C.; Gutsche, T.; Hanhart, C.; Hernández-Rey, J.J.; Lourenço, C.; Masoni, A.; Mikhasenko, M.; Mitchell, R.E.: Patrignani, C.; et al. Review of Particle Physics. Phys. Rev. D 2024, 110, 030001. [CrossRef]

  157. [165]

    Capture of Slow Neutrons

    Breit, G.; Wigner, E. Capture of Slow Neutrons. Phys. Rev. 1936, 49, 519. [CrossRef]

  158. [166]

    Model-independent resonance parameter extraction using the trace of K and T matrices

    Ceci, S.; Švarc, A.; Zauner, B.; Manley, D.M.; Capstick, S. Model-independent resonance parameter extraction using the trace of K and T matrices. Phys. Lett. B 2008, 659, 228–233. [CrossRef] Symmetry 2025, 17, 1324 32 of 32

  159. [167]

    Model-Independent Extraction of the Pole and Breit-Wigner Resonance Parameters

    Ceci, S.; Korolija, M.; Zauner, B. Model-Independent Extraction of the Pole and Breit-Wigner Resonance Parameters. Phys. Rev. Lett. 2013, 111, 112004. [CrossRef] [PubMed]

  160. [168]

    Strange pentaquarks and excited Ξ hyperons in Ξ− b → J/ΨΛK− final states

    Karliner, M.; Rosner, J.L. Strange pentaquarks and excited Ξ hyperons in Ξ− b → J/ΨΛK− final states. Sci. Bull. 2021, 66, 1256. [CrossRef] Disclaimer/Publisher’s Note: The statements, opinions and data contained in all publications are solely those of the individual author(s) ...

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