Speaker
Partha Bagchi
(Institute Of Physics)
Description
Rapid thermalization in ultra-relativistic heavy-ion collisions leads
to fast changing potential between a heavy quark and antiquark from zero
temperature potential to the finite temperature one. Time dependent
perturbation theory can then be used to calculate the survival probability
of the initial quarkonium state. In view of very short time scales
of thermalization at RHIC and LHC energies, we calculate the survival
probability of $J/\psi$ and $\Upsilon$ using sudden approximation.
Our results show that quarkonium decay may be significant even
when temperature of QGP remains low enough so that the conventional
quarkonium melting due to Debye screening is ineffective.
Primary authors
Prof.
Ajit M. Srivastava
(Institute of Physics)
Partha Bagchi
(Institute Of Physics)
