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In-medium bottomonium properties from lattice NRQCD calculations with extended meson operators

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arxiv 2501.11257 v2 pith:VUFIAMWH submitted 2025-01-20 hep-lat hep-phnucl-th

H.-T. Ding , W.-P. Huang , R. Larsen , S. Meinel , Swagato Mukherjee , P. Petreczky , Zhanduo Tang This is my paper
classification hep-lathep-phnucl-th
keywords bottomoniumlatticein-mediumpropertiesquarkactioncalculationsextended
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We calculate the temperature dependence of bottomonium correlators in (2+1)-flavor lattice QCD with the aim to constrain in-medium properties of bottomonia at high temperature. The lattice calculations are performed using HISQ action with physical strange quark mass and light quark masses twenty times smaller than the strange quark mass at two lattice spacings $a=0.0493$ fm and $0.0602$ fm, and temporal extents $N_{\tau}=16-30$, corresponding to the temperatures $T=133-250$ MeV. We use a tadpole-improved NRQCD action including spin-dependent $v^6$ corrections for the heavy quarks and extended meson operators in order to be sensitive to in-medium properties of the bottomonium states of interest. We find that within estimated errors the bottomonium masses do not change compared to their vacuum values for all temperatures under our consideration; however, we find different nonzero widths for the various bottomonium states.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Heavy quark thermodynamics with anisotropic lattices

    hep-lat 2026-04 unverdicted novelty 7.0 of 10

    Anisotropic lattice results indicate a small negative mass shift and increasing thermal width for heavy quarkonia, with the first high-temperature masses and spectral functions reported for B mesons.

  2. Charmonium properties at high temperatures from lattice QCD

    hep-lat 2026-05 unverdicted novelty 4.0 of 10

    Lattice QCD calculations indicate charmonium states persist below the open-charm threshold up to 305 MeV but develop temperature-dependent thermal widths that increase with state size.

  3. Three regimes/phases of QCD at high T, their symmetries and N_c scaling

    hep-ph 2026-04 unverdicted novelty 2.0 of 10

    QCD at high T has three phases differing in symmetries, degrees of freedom and N_c scaling: hadron gas below T_ch, stringy fluid between T_ch and T_d, and quark-gluon plasma above T_d.

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