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Fluctuations and correlations of conserved charges in the (2+1) Polyakov quark meson model

Chatterjee, Sandeep and Mohan, Kirtimaan A (2012) Fluctuations and correlations of conserved charges in the (2+1) Polyakov quark meson model. In: PHYSICAL REVIEW D, 86 (11).

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Official URL: http://dx.doi.org/10.1103/PhysRevD.86.114021


We consider the (2 + 1) flavor Polyakov quark meson model and study the fluctuations (correlations) of conserved charges up to sixth (fourth) order. A comparison is made with lattice data wherever available and overall good qualitative agreement is found, more so for the case of the normalized susceptibilities. The model predictions for the ratio of susceptibilities go to that of an ideal gas of hadrons as in hadron resonance gas model at low temperatures while at high temperature the values are close to that of an ideal gas of massless quarks. Our study provides a strong basis for the use of the Polyakov quark meson model as an effective model to understand the topology of the QCD phase diagram. DOI: 10.1103/PhysRevD.86.114021 PACS numbers: 12.39.-x, 05.40.-a, 12.38.Aw, 12.38.Mh

Item Type: Journal Article
Additional Information: Copyright for this article belongs to AMER PHYSICAL SOC, USA
Department/Centre: Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Date Deposited: 16 Jan 2013 12:42
Last Modified: 16 Jan 2013 12:42
URI: http://eprints.iisc.ac.in/id/eprint/45639

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