Flavor diagonal and off-diagonal susceptibilities in a quasiparticle model of the quark-gluon plasma

2008/01/31 by Marcus Bluhm, M. Bluhm, B. Kämpfer +1
Physics and Astronomy · #Baryon #Condensed matter physics #Diagonal #High-Energy Particle Collisions Research #Isovector #Lattice QCD #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Quark #Quark–gluon plasma #Quasiparticle #hep-ph

paper · pdf · doi:10.1103/physrevd.77.114016

published as Phys.Rev.D77:114016,2008 · Jan 2008. 25 pp

openalex publication_date 2008/06/17 · arxiv created 2008/07/08 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The Taylor coefficients of flavor diagonal and off-diagonal susceptibilities as well as baryon number, isovector, and electric charge susceptibilities are considered within a phenomenological quasiparticle model of the quark-gluon plasma and successfully compared with available lattice QCD data up to fourth-order for two degenerate quark flavors. These susceptibility coefficients represent sensible probes of baryon-density effects in the equation of state. The baryon charge is carried, in our model, by quark-quasiparticle excitations for hard momenta.

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