Speaker
Mrs
Ranjita Mohapatra
(Institute of Physics)
Description
We investigate the effects of explicit breaking of Z(3) symmetry due to the presence of dynamical
quarks on the formation and evolution of Z(3) walls and associated QGP strings within Polyakov
loop model. We carry out numerical simulations of the first order quark-hadron phase transition via
bubble nucleation (which may be appropriate, for example, at finite baryon chemical potential) in
the context of relativistic heavy-ion collision experiments. Using appropriate shifting of the order
parameter in the Polyakov loop effective potential, we calculate the bubble profiles using bounce
technique, for the true vacuum as well as for the metastable Z(3) vacua, and estimate the associated
nucleation probabilities. These different bubbles are then nucleated and evolved and resulting
formation and dynamics of Z(3) walls and QGP strings is studied. We discuss various implications
of the existence of these Z(3) interfaces and the QGP strings, especially in view of the effects of the
explicit breaking of the Z(3) symmetry on the formation and dynamical evolution of these objects.
(Accepted for publication in Phy. Rev. D)
Primary author
Mrs
Ranjita Mohapatra
(Institute of Physics)
