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    Particle distributions in electroweak tachyonic preheating


    Skullerud, Jon-Ivar and Smit, Jan and Tranberg, Anders (2004) Particle distributions in electroweak tachyonic preheating. Nuclear Physics B - Proceedings Supplements, 129-13. pp. 771-773. ISSN 09205632

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    Abstract

    We consider the out-of-equilibrium (quasi-) particle number distributions of the Higgs and W-fields during electroweak tachyonic preheating. We model this process by a fast quench, and perform classical real-time lattice simulations in the SU(2)-Higgs model in three dimensions. We discuss how to define particle numbers and effective energies using two-point functions in Coulomb and unitary gauge, and consider some of the associated problems. After an initial exponential growth in effective particle numbers, the system stabilises, allowing us to extract effective masses, temperatures and chemical potentials for the particles.

    Item Type: Article
    Keywords: Particle distributions; electroweak; tachyonic; preheating;
    Academic Unit: Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Faculty of Science and Engineering > Theoretical Physics
    Item ID: 15675
    Identification Number: https://doi.org/10.1016/S0920-5632(03)02708-7
    Depositing User: Dr. Jonivar Skullerud
    Date Deposited: 15 Mar 2022 16:18
    Journal or Publication Title: Nuclear Physics B - Proceedings Supplements
    Refereed: Yes
    URI:

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