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:
Journal Article
Journal or Publication Title:
Physical Review D – Particles and Fields
Additional Information:
© 2005 The American Physical Society
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
55932
Deposited By:
Deposited On:
17 Jul 2012 15:58
Refereed?:
Yes
Published?:
Published
Last Modified:
29 Sep 2020 01:21