In relativistic heavy ion collisions at RHIC and the LHC, a quark–gluon plasma (QGP) is created for short duration of about 10 fm/c. Quarkonia (bound states $$c\bar{c}$$ $$b\bar{b}$$ ) are sensitive probes this phase on length scales comparable to size bound which less than 1 fm. Observations quarkonia in these provide us with lot information how presence QGP affects various quarkonium states. ...

We apply the Low's theorem to soft gluon emission from heavy quark scattering in nonperturbative strongly interacting quark-gluon plasma (sQGP). The sQGP is described terms of dynamical quasi-particles and adjusted reproduce EoS lQCD at finite temperature chemical potential. Since emitted long wavelength, it does not provide information on detailed structure scattering, only incoming outgoing p...