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Is neutralino dark matter compatible with flipped SU(5) models?

McDonald, John (1989) Is neutralino dark matter compatible with flipped SU(5) models? Physics Letters B, 225 (1-2). pp. 133-139. ISSN 0370-2693

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Abstract

We consider the possibility that the lightest supersymmetric particle in flipped SUSY SU(5) × U(1) models is cosmologically stable and corresponds to a neutralino. Previous studies of dark matter in flipped SUSY SU(5) models have suggested that the decay of the oscillations of the SU(5) breaking scalar field would result in too many neutralinos, if they are stable. We show that it is possible for an acceptable density of neutralinos to occur in the case where the neutralino corresponds to a light photino, if the temperature at the end of the oscillation dominated period is <O(10)MeV. This leads to the possibility of directly detectable dark matter in flipped SU(5) models. Direct detection of dark matter in forthcoming experiments will therefore not eliminate this class of models.

Item Type: Article
Journal or Publication Title: Physics Letters B
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 83245
Deposited By: ep_importer_pure
Deposited On: 29 Nov 2016 09:10
Refereed?: Yes
Published?: Published
Last Modified: 20 Sep 2017 03:15
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/83245

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