Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-02-07
Physics
High Energy Physics
High Energy Physics - Phenomenology
14 pages, 7 figures and 6 tables
Scientific paper
Following a recent work on equation of state for strongly interacting quark-gluon plasma [J. Phys. G: Nucl. Part. Phys. 32, 993 (2006)], we revisited the equation of state by incorporating the non-perturbative effects in the deconfined plasma phase. Our results on thermodynamic observables viz. pressure, energy density, speed of sound etc. nicely fit with the lattice equation of state for gluon, massless and as well massive flavored plasma. Motivated by this agreement with lattice results, we have employed our equation of state to estimate the quarkonium suppression in an expanding, dissipative strongly interacting QGP produced in relativistic heavy-ion collisions and our prediction matches exactly with the recent PHENIX data on the centrality dependence of $J/\psi$ suppression in Au+Au collisions at BNL RHIC. We have also predicted for the $\Upsilon$ suppression in Pb+Pb collisions at LHC energy which could be tested in the ALICE experiments at CERN LHC.
Agotiya Vineet
Patra Binoy Krishna
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