The bottomonium spectrum at finite temperature from N f = 2 + 1 lattice QCD
Citation:
Aarts, G. Allton, C. Harris, T. Kim, S. Lombardo, M.P. Ryan, S.M. Skullerud, J.-I., The bottomonium spectrum at finite temperature from N f = 2 + 1 lattice QCD, Journal of High Energy Physics, 2014, 7, 2014, 97-Download Item:
art%3A10.1007%2FJHEP07%282014%29097.pdf (PDF) 622.2Kb
Abstract:
We present results on the bottomonium spectrum at temperatures above and
below the deconfinement crossover temperature,
T
c
, from dynamical lattice QCD simu-
lations. 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 2
T
c
and the immediate dissociation of the
P wave states above
T
c
Author's Homepage:
http://people.tcd.ie/ryansinDescription:
PUBLISHED
Author: RYAN, SINEAD
Type of material:
Journal ArticleSeries/Report no:
Journal of High Energy Physics2014
7
Availability:
Full text availableKeywords:
bottomonium spectrum at temperaturesDOI:
http://dx.doi.org/10.1007/JHEP07(2014)097Licences: