Speaker
Sandeep Chatterjee
(National Institute of Science Education and Research)
Description
The rich sign structures of cumulants of conserved charges in the critical region
are investigated in a QCD like model- the $\left(2+1\right)$ flavor Polyakov Quark Meson model.
We compute all susceptibilities of the conserved charges on the $\mu_B-T$ plane upto
fourth order and a few even higher orders. By varying the
mass of the sigma meson, we are able to study and compare scenarios with as well as
without a critical point. In the hadron-quark transition regime we identify certain
correlations that turn negative unlike expectation from ideal hadron resonance gas
calculations. These remain negative deep into the hadronic side and thus could be
accessible to experiments. Measurements of such quantities in the heavy ion collision
experiments can throw light on the location of the QCD transition curve as well as
the critical point.
Author
Sandeep Chatterjee
(National Institute of Science Education and Research)
