Comparative analysis of critical regions: The renormalized quark-meson model under Polyakov loop, quark back-reaction, and vector interaction effects

Akanksha Tripathi, Suraj Kumar Rai, Vivek Kumar Tiwari

The critical regions enveloping the critical end point (CEP) in the $\hat{I}¼$-$T$ plane are mapped by computing the contours of normalized quark number susceptibility within the on shel…