Excited bottomonia in quark-gluon plasma from lattice QCD

摘要

We present the first lattice QCD study of up to 3S and 2P bottomonia at non-zero temperatures. Correlation functions of bottomonia were computed using novel bottomonium operators and a variational technique, within the lattice non-relativistic QCD framework. We analyzed the bottomonium correlation functions based on simple physically-motivated spectral functions. We found evidence of sequential in medium modifications, in accordance with the sizes of the bottomonium states. (C) 2019 The Authors. Published by Elsevier B.V.