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Effective Field Theory Lagrangians for Baryons with Two and Three Heavy Quarks

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arxiv hep-ph/0506065 v2 pith:Y77DXVU6 submitted 2005-06-07 hep-ph hep-latnucl-th

Nora Brambilla , Thomas Roesch , Antonio Vairo This is my paper · ORCID
classification hep-phhep-latnucl-th
keywords baryonsheavyeffectivefieldquarksthreeanalogyconstruct
verification ladder T0 review T1 audit T2 compute T3 formal

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By analogy with pNRQCD, we construct Effective Field Theories suitable to describe the heavy-quark sector of baryons made of two and three heavy quarks. A long-standing discrepancy between the hyperfine splitting of doubly heavy baryons obtained in the HQET and potential models is solved. The one-loop matching of the 4-quark operators of dimension 6 is provided.

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Forward citations

Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 175 citations worldwide. Full citation record

  1. Triple top baryon $\Omega_{ttt}$

    hep-ph 2025-08 conditional novelty 5.0 of 10

    The triple-top baryon Ωttt is predicted to have mass 513.58 GeV, binding energy 4.13 GeV, and a dominant W+W+W+bbb decay, with production cross sections too small to observe at near-future colliders.

  2. Production of doubly charmed tetraquark $T_{cc}$ via photon-photon fusion at electron-positron colliders

    hep-ph 2024-12 reject novelty 5.0 of 10

    A diquark fragmentation model predicts that photon-photon fusion at CEPC and ILC can produce the doubly charmed tetraquark Tcc with thousands of events per year.

  3. Revisiting lifetimes of doubly charmed baryons

    hep-ph 2023-05 unverdicted novelty 5.0 of 10

    Updated predictions within the heavy quark expansion confirm the lifetime hierarchy τ(Ξ_cc^+) < τ(Ω_cc^+) < τ(Ξ_cc^++) with τ(Ξ_cc^++) = 0.32 ± 0.05 +0.08/-0.07 ps matching LHCb data and provide ratios for the other states.

  4. Mass spectrum, magnetic moments and Regge trajectories of $\Omega_{ccb}$ and $\Omega_{cbb}$ baryons in the nonrelativistic quark--diquark model

    hep-ph 2026-04 unverdicted novelty 4.0 of 10

    In a nonrelativistic quark-diquark model fitted to B_c meson data, the authors predict ground-state masses of ~8.0 GeV for Ω_ccb and ~11.0 GeV for Ω_cbb along with magnetic moments and Regge trajectories for different...

  5. Scalar Triple-Heavy Tetraquark States With Quark Content $cc\bar{c}\bar{s}$

    hep-ph 2025-06 conditional novelty 4.0 of 10

    QCD sum rule analysis predicts scalar cc̄c̄s tetraquark states with masses near 4.94 to 5.08 GeV, including an ηc-Ds molecule and two diquark-antidiquark compact states.

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