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arXiv · 1908.08437

Thermal Broadening of Bottomonia: Lattice Non-Relativistic QCD with Extended Operators

Rasmus Larsen·Stefan Meinel·Swagato Mukherjee·Peter Petreczky
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Abstract

We present lattice non-relativistic QCD calculations of bottomonium correlation functions at temperatures $T \simeq 150-350$ MeV. The correlation functions were computed using extended bottomonium operators, and on background gauge-field configurations for 2+1-flavor QCD having physical kaon and nearly-physical pion masses. We analyzed these correlation functions based on simple theoretically-motivated parameterizations of the corresponding spectral functions. The results of our analyses are compatible with significant in-medium thermal broadening of the ground state S- and P-wave bottomonia.

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Rasmus Larsen, Stefan Meinel, Swagato Mukherjee, Peter Petreczky. 2020-05-29. Thermal Broadening of Bottomonia: Lattice Non-Relativistic QCD with Extended Operators. https://doi.org/10.1103/physrevd.100.074506

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