1112.2761 (Michael Strickland et al.)

Thermal Bottomonium Suppression at RHIC and LHC    [PDF]

Michael Strickland, Dennis Bazow

In this paper we consider the suppression of bottomonium states in
ultrarelativistic heavy ion collisions. We compute the suppression as a
function of centrality, rapidity, and transverse momentum for the states
Upsilon(1s), Upsilon(2s), Upsilon(3s), chi_b1, and chi_b2. Using this
information, we then compute the inclusive Upsilon(1s) suppression as a
function of centrality, rapidity, and transverse momentum including feed down
effects. Calculations are performed for both RHIC sqrt(s_NN)=200 GeV Au-Au
collisions and LHC sqrt(s_NN)=2.76 TeV Pb-Pb collisions. From the comparison of
our theoretical results with data available from the STAR and CMS
Collaborations we are able to constrain the shear viscosity to entropy ratio to
be in the range 0.08 < eta/S < 0.24. Our results are consistent with the
creation of a high temperature quark-gluon plasma at both RHIC and LHC
collision energies.

View original: http://arxiv.org/abs/1112.2761