Susceptibilities with multi-quark interactions in PNJL model

Understand

We have investigated the fluctuations and the higher order susceptibilities of quark number, isospin number, electric charge and strangeness at vanishing chemical potential for 2+1 flavor Polyakov loop extended Nambu--Jona-Lasinio model.

• The calculations are performed for the bound effective potential in the quark sector requiring up to eight quark interaction terms.
• These have been contrasted to the lattice results which currently have somewhat heavier quarks in the light flavor sector.
• The results show sufficient qualitative agreement.