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    Nucleons and parity doubling across the deconfinement transition


    Aarts, Gert and Allton, Chris and Hands, Simon and Jager, Benjamin and Praki, Chrisanthi and Skullerud, Jon-Ivar (2015) Nucleons and parity doubling across the deconfinement transition. Physical Review D, 92 (014503). pp. 1-6. ISSN 1550-7998

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    Abstract

    It is expected that nucleons and their parity partners become degenerate when chiral symmetry is restored. We investigate this question in the context of the thermal transition from the hadronic phase to the quark-gluon plasma, using lattice QCD simulations with Nf ¼ 2 þ 1 flavors. We observe a clear sign of parity doubling in the quark-gluon plasma. Besides, we find that the nucleon ground state is, within the uncertainty, largely independent of the temperature, whereas temperature effects are substantial in the negative-parity (N*) channel, already in the confined phase.

    Item Type: Article
    Keywords: Nucleons; parity doubling; deconfinement transition; quark-gluon plasma;
    Academic Unit: Faculty of Science and Engineering > Mathematical Physics
    Item ID: 6293
    Identification Number: https://doi.org/10.1103/PhysRevD.92.014503
    Depositing User: Dr. Jonivar Skullerud
    Date Deposited: 18 Aug 2015 15:43
    Journal or Publication Title: Physical Review D
    Publisher: American Physical Society
    Refereed: Yes
    URI:

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