MSSM dark matter constraints and decaying B-balls

Enqvist, Kari and McDonald, John (1998) MSSM dark matter constraints and decaying B-balls. Physics Letters B, 440 (1-2). pp. 59-65. ISSN 0370-2693

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In the MSSM, LSP dark matter could arise from the decay of B-balls rather than from thermal relies, with a quite different dependence on the MSSM parameters and a natural correlation with the baryon asymmetry. We discuss the constraints imposed on the properties of B-balls and the MSSM spectrum by experimental constraints and show that B-balls cannot form from an Affleck-Dine condensate with 100% efficiency in the absence of LSP annihilations after they decay. For likely formation efficiencies the LSP and slepton masses are typically constrained to be light. The effects of LSP annihilations after the B-balls decay are discussed; for sufficiently small decay temperatures annihilations will play no role, opening up the possibility of experimentally testing the scenario. (C) 1998 Elsevier Science B.V. All rights reserved.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
?? big-bangsupergravityphysicsnuclear and high energy physics ??
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29 Nov 2016 09:50
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15 Jul 2024 16:36