Bottomonium suppression from the three-loop QCD potential
arxiv(2024)
摘要
We compute the suppression of bottomonium in the quark-gluon plasma using the
three-loop QCD static potential. The potential describes the spin-averaged
bottomonium spectrum below threshold with a less than 1
potential nonrelativistic quantum chromodynamics and an open quantum systems
framework, we compute the evolution of the bottomonium density matrix. The
values of the quarkonium transport coefficients are obtained from lattice QCD
measurements of the bottomonium in-medium width and thermal mass shift; we
additionally include for the first time a vacuum contribution to the dispersive
coefficient γ. Using the three-loop potential and the values of the
heavy quarkonium transport coefficients, we find that the resulting bottomonium
nuclear modification factor is consistent with experimental observations, while
at the same time reproducing the lattice measurements of the in-medium width.
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