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Hadrons with a heavy colour-adjoint particle
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We discuss the spectrum of hadrons with a heavy colour-adjoint particle - motivated by the gluino of supersymmetry. Using the lattice approach, we explore in detail the gluonic bound states - the `glueballino' or `gluelump'. We also make a first determination of the spectrum of the `adjoint mesons' - which have a light quark and antiquark bound to the heavy adjoint particle. A comparison of the spectra of these two systems is also made.
Forward citations
Cited by 9 Pith papers
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Lattice study of correlators of chromoelectric fields for heavy quarkonium dynamics in the quark-gluon plasma
Adjoint chromoelectric correlators relevant for quarkonium dynamics are calculated in quenched lattice QCD and found to equal the fundamental correlator times Casimir factors, confirming leading-order relations nonper...
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QCD spin effects in the heavy hybrid potentials and spectra
Nonperturbative spin-dependent hybrid potentials are expressed as gluonic correlators, fitted to charmonium lattice data, and used to predict bottomonium hybrid spectra.
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Quarkoniumlike states above open-flavor thresholds in Born-Oppenheimer EFT
A QCD-constrained Born-Oppenheimer calculation organizes most observed quarkoniumlike states above open-flavor thresholds into heavy-quark-spin-symmetry multiplets and predicts a shallow X_b.
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Hybrid static potentials and gluelumps on $N_f=3+1$ ensembles
New lattice QCD measurements of hybrid static potentials, static-light thresholds, and gluelump masses on N_f=3+1 ensembles with pions near 420 MeV, using Laplace trial states.
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Nucleon sigma terms with a variational analysis from Lattice QCD
A variational basis with nucleon-sigma interpolators reduces excited state contamination in direct lattice QCD determinations of nucleon sigma terms, demonstrated on one Nf=3 ensemble at M_pi=429 MeV.
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Lattice QCD study of color correlations between static quarks with gluonic excitations
Excited hybrid quark-antiquark channels are color-octet at short distance and exponentially relax to random color, with screening masses ordered B(Σ_g^+) ~ B(Π_u) < B(Π_u') ~ B(Δ_g) < B(Δ_g') < B(Σ_g^+').
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$\boldsymbol{\chi_{c1}}(3872)$ and its Partners in the Diabatic Born-Oppenheimer Approximation for QCD
χ_c1(3872) is treated as a bound state in adjoint-meson Born-Oppenheimer potentials within a diabatic model, with calculated spin splittings and decay widths for its multiplet and bottom analogs after tuning to threshold.
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The Pattern of Exotic Hidden-Heavy Hadrons Revealed
Exotic hidden-heavy hadrons are proposed as near-threshold bound states and resonances in Born-Oppenheimer potentials that are repulsive at short range and cross the heavy-hadron-pair threshold.
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Spin Structure of heavy-quark hybrids
Heavy-quark hybrid spin splittings are fitted to charmonium lattice data and extrapolated to bottomonium, and hadronic transitions are computed with hybrid intermediate states, in a review of the author's earlier work.
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