Excited bottomonia in quark-gluon plasma from lattice QCD

Abstract

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. Keywords: Heavy-ion collision, Quark-gluon plasma, Quarkonium, Lattice QCD