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Susceptibilities with multi-quark interactions in PNJL model

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arxiv 1008.0768 v3 pith:ZZJNMIOC submitted 2010-08-04 hep-ph hep-latnucl-th

Susceptibilities with multi-quark interactions in PNJL model

classification hep-ph hep-latnucl-th
keywords quarkpotentialresultseffectiveflavorinteractionmodelnumber
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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. For comparison we also present the results obtained with the conventional effective potential containing upto six quark interaction terms.

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  1. Effective QCD model with consistent quasi-gluon treatment : formulation and application

    hep-ph 2026-06 unverdicted novelty 5.0

    Reformulation of the PNJL model with gluon quasi-particles treated beyond saddle-point approximation to yield a consistent quasiparticle description of QCD thermodynamics.