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Gravitino production from reheating in split supersymmetry

Allahverdi, Rouzbeh and Jokinen, Asko and Mazumdar, Anupam (2004) Gravitino production from reheating in split supersymmetry. Physical Review D – Particles and Fields, 71 (4). ISSN 1550-2368

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    Abstract

    We discuss gravitino production from reheating in models where the splitting between particle and sparticle masses can be larger than TeV, as naturally arising in the context of split supersymmetry. We show that such a production typically dominates over thermal contributions arising from the interactions of gauginos, squarks and sleptons. We constrain the supersymmetry breaking scale of the relevant sector for a given reheat temperature. However the situation changes when the gravitinos dominate the Universe and decay before nucleosynthesis. We briefly describe prospects for a successful baryogenesis and a viable neutralino dark matter in this case.

    Item Type: Article
    Journal or Publication Title: Physical Review D – Particles and Fields
    Additional Information: © 2005 The American Physical Society
    Subjects: Q Science > QC Physics
    Departments: Faculty of Science and Technology > Physics
    ID Code: 55932
    Deposited By: ep_importer_pure
    Deposited On: 17 Jul 2012 16:58
    Refereed?: Yes
    Published?: Published
    Last Modified: 09 Apr 2014 23:49
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/55932

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