Peer-Reviewed Journal Details
Mandatory Fields
Aarts G.;Allton C.;Harris T.;Kim S.;Lombardo M.;Ryan S.;Skullerud J.
Journal of High Energy Physics
The bottomonium spectrum at finite temperature from N f = 2 + 1 lattice QCD
Optional Fields
Lattice QCD Thermal Field Theory
We present results on the bottomonium spectrum at temperatures above and below the deconfinement crossover temperature, T c, from dynamical lattice QCD simulations. The heavy quark is treated with a non-relativistic effective field theory on the lattice and serves as a probe of the hot medium. Ensembles with a finer spatial lattice spacing and a greater range of temperatures below T c than those previously employed by this collaboration are used. In addition, there are N f = 2 + 1 flavours of Wilson clover quark in the sea with M π ≈ 400 MeV and we perform a more careful tuning of the bottom quark mass in this work. We calculate the spectral functions of S and P wave bottomonium states using the maximum entropy method and confirm earlier findings on the survival of the ground state S wave states up to at least 2T c and the immediate dissociation of the P wave states above T c . © 2014 The Author(s).
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