Supersymmetry and the Cosmic Ray Positron Excess

Journal Article · Fri Feb 15 00:00:00 EST 2002 · Physics Letters B

DOI:https://doi.org/10.1016/S0370-2693(02)01839-7· OSTI ID:965506

Kane, Gordon L; Wang, Lian-Tao; Wang, Ting T

We explore several supersymmetric alternatives to explain predictions for the cosmic ray positron excess. Light sneutrino or neutralino LSP's, and a fine-tuned model designed to provide a delta-function input, can give adequate statistical descriptions of the reported HEAT data if non-thermal production of the relic cold dark matter density dominates and/or if"boost factors" (that could originate in uncertainties from propagation or local density fluctuations) to increase the size of the signal are included. All the descriptions can be tested at the Tevatron or LHC, and some in other WIMP detecting experiments.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: Physics Division
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 965506
• Report Number(s): LBNL-48801; TRN: US0903640
• Journal Information: Physics Letters B, Related Information: Journal Publication Date: 06/06/2002; ISSN 0370-2693
• Country of Publication: United States
• Language: English

Related Subjects

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DELTA FUNCTION
FERMILAB TEVATRON
FLUCTUATIONS
NONLUMINOUS MATTER
POSITRONS
PRODUCTION
SUPERSYMMETRY