Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2009-01-14
Physics
Nuclear Physics
Nuclear Theory
10 Pages, 2 Figures, two column, Based on invited talk in DAE symposium on Nuclear Physics, Dec. 22 to 26, 2008 (IIT Roorkee,
Scientific paper
At high temperatures, strongly interacting matter becomes a plasma of deconfined quarks and gluons. In statistical QCD, deconfinement and the properties of the resulting quark-gluon plasma can be investigated by studying the in-medium behaviour of heavy quark bound states. In high energy nuclear interactions, quarkonia probe different aspects of the medium formed in the collision. So, we first reviewed the fate of quarkonia in the different stages of the (dynamical) system produced at the collision. We have then presented our present work on the dissociation of the heavy quarkonium states in a hot QCD medium by investigating the medium modifications to heavy quark potential. In contrast to the usual screening picture, interestingly our theory gives rise the screening of the charge, not the range of the potential.
Agotiya Vineet
Chandra Vinod
Patra Binoy Krishna
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