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Calendar of Physics Talks Vienna
| Thermal Upsilon(1s) and chi_b1 Suppression in sqrt(s_NN)=2.76 TeV Pb-Pb Collisions |
| Speaker: | Michael Strickland (Gettysburg Coll. & Frankfurt U., FIAS) |
| Abstract: | In this talk I will discuss my recent work on thermal heavy quarkonium
suppression. The thermal suppression of heavy quark bound states
represents an ideal observable for determining if one has produced a
quark gluon plasma in ultrarelativistic heavy-ion collisions. In recent
years, however, a paradigm shift has taken place in the theory of
quarkonium suppression due to new first principles calculations of the
thermal widths of these states. These thermal widths are large, eg
O(30-100 MeV) for the Upsilon, and cause in-medium suppression of the
states at temperatures below their traditional disassociation
temperatures. In order to apply the newly developed understanding to
phenomenology, however, one must make detailed space-time models of the
plasma including the effects of finite shear viscosity. These effects
include not only the modification of the time evolution of the
temperature of the system, flow, etc., but also the evolution of
potentially large local momentum-space anisotropies which affect the
binding energy of the states. |
| Date: | Wed, 10.08.2011 |
| Time: | 11:15 |
| Duration: | 60 min |
| Location: | Institute for Theoretical Physics, TU Wien, SEM 136, 10th floor, Wiedner Hauptstr. 8-10, 1040 Wien |
| Contact: | Anton Rebhan, TU Wien |
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