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Title: Supersymmetry and the Cosmic Ray Positron Excess

Abstract

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.

Authors:
; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
Physics Division
OSTI Identifier:
965506
Report Number(s):
LBNL-48801
Journal ID: ISSN 0370-2693; TRN: US0903640
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Journal Article
Journal Name:
Physics Letters B
Additional Journal Information:
Related Information: Journal Publication Date: 06/06/2002; Journal ID: ISSN 0370-2693
Country of Publication:
United States
Language:
English
Subject:
72; DELTA FUNCTION; FERMILAB TEVATRON; FLUCTUATIONS; NONLUMINOUS MATTER; POSITRONS; PRODUCTION; SUPERSYMMETRY

Citation Formats

Kane, Gordon L, Wang, Lian-Tao, and Wang, Ting T. Supersymmetry and the Cosmic Ray Positron Excess. United States: N. p., 2002. Web. doi:10.1016/S0370-2693(02)01839-7.
Kane, Gordon L, Wang, Lian-Tao, & Wang, Ting T. Supersymmetry and the Cosmic Ray Positron Excess. United States. https://doi.org/10.1016/S0370-2693(02)01839-7
Kane, Gordon L, Wang, Lian-Tao, and Wang, Ting T. 2002. "Supersymmetry and the Cosmic Ray Positron Excess". United States. https://doi.org/10.1016/S0370-2693(02)01839-7. https://www.osti.gov/servlets/purl/965506.
@article{osti_965506,
title = {Supersymmetry and the Cosmic Ray Positron Excess},
author = {Kane, Gordon L and Wang, Lian-Tao and Wang, Ting T},
abstractNote = {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.},
doi = {10.1016/S0370-2693(02)01839-7},
url = {https://www.osti.gov/biblio/965506}, journal = {Physics Letters B},
issn = {0370-2693},
number = ,
volume = ,
place = {United States},
year = {Fri Feb 15 00:00:00 EST 2002},
month = {Fri Feb 15 00:00:00 EST 2002}
}