Equation of state of gluon plasma from a fundamental modular region

Daniel Zwanziger

    Research output: Contribution to journalArticle

    Abstract

    Despite considerable practical success in dealing with the gluon plasma, finite-temperature perturbation theory suffers at the fundamental level from infrared divergences discovered by Linde. However, if gauge or Gribov copies are properly eliminated from the physical state space, infrared modes are strongly suppressed. We describe the gluon plasma in zeroth order as a gas of free quasiparticles with a temperature-independent dispersion relation of Gribov type, E(k)=k2+M4k2, that results from the reduction of the physical state space. The effective mass M2k controls infrared divergences and allows finite calculable corrections. The equation of state of this gas is calculated and compared with numerical lattice data.

    Original languageEnglish (US)
    Article number182301
    JournalPhysical Review Letters
    Volume94
    Issue number18
    DOIs
    StatePublished - May 13 2005

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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