Nonperturbative contributions to the QCD pressure

Klaus Lichtenegger, Daniel Zwanziger

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We summarize the most important arguments for why a perturbative description of finite-temperature QCD is unlikely to be possible and review various well-established approaches to deal with this problem. Then, using a recently proposed method, we investigate nonperturbative contributions to the QCD pressure and other observables (such as energy, anomaly, and bulk viscosity) obtained by imposing a functional cutoff at the Gribov horizon. Finally, we discuss how such contributions fit into the picture of consecutive effective theories, as proposed by Braaten and Nieto, and give an outline of the next steps necessary to improve this type of calculation.

    Original languageEnglish (US)
    Article number034038
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume78
    Issue number3
    DOIs
    StatePublished - Aug 29 2008

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics
    • Physics and Astronomy (miscellaneous)

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