Isospin-symmetry breaking and baryon-isospin correlations from the Polyakov--Nambu--Jona-Lasinio model

Isospin-symmetry breaking and baryon-isospin correlations from the Polyakov–Nambu–Jona-Lasinio model

Abhijit Bhattacharyya, Sanjay K. Ghosh, Anirban Lahiri, Sarbani Majumder, Sibaji Raha, and Rajarshi Ray

Phys. Rev. C 89, 064905 – Published 10 June 2014

Abstract

We present a study of the 1+1 flavor system of strongly interacting matter in terms of the Polyakov–Nambu–Jona-Lasinio model. We find that, although the small isospin-symmetry breaking brought in through unequal light quark masses is too small to affect the thermodynamics of the system in general, it may have a significant effect in baryon-isospin correlations and have a measurable impact in heavy-ion collision experiments.

Received 8 April 2014

DOI:https://doi.org/10.1103/PhysRevC.89.064905

Authors & Affiliations

Abhijit Bhattacharyya^*

Department of Physics, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, India

Sanjay K. Ghosh^†, Anirban Lahiri^‡, Sarbani Majumder^§, Sibaji Raha^∥, and Rajarshi Ray^¶

Center for Astroparticle Physics & Space Science, Bose Institute, Block EN, Sector V, Bidhan Nagar, Kolkata 700091, India and Department of Physics, Bose Institute, 93/1 A.P.C. Road, Kolkata 700009, India

^*abphy@caluniv.ac.in
^†sanjay@jcbose.ac.in
^‡anirbanlahiri.physics@gmail.com
^§sarbanimajumder@gmail.com
^∥sibaji@jcbose.ac.in
^¶rajarshi@jcbose.ac.in

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Issue

Vol. 89, Iss. 6 — June 2014

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Physical Review C

covering nuclear physics