Positron Fraction in the CMSSM
Astrophysics
2017-08-23 v1
Abstract
A fit to the present data on the cosmic ray positron fraction can be considerably improved,if in addition to the positron production by nuclear interactions in the universe the possible contribution from supersymmetric dark matter annihilation is taken into account. We scan over the complete SUSY parameter space of the Constrained Minimal Supersymmetric Model (CMSSM) and find that in the acceptable regions the neutralino annihilation into b-bbar quark pairs is the dominant channel with hard positrons emerging from the semileptonic decays of the B-mesons.
Cite
@article{arxiv.astro-ph/0212388,
title = {Positron Fraction in the CMSSM},
author = {Wim de Boer and Markus Horn and Christian Sander and Dmitri Kazakov},
journal= {arXiv preprint arXiv:astro-ph/0212388},
year = {2017}
}
Comments
6 pages, Latex, Proceedings of the 4th International Workshop on Identification of Dark Matter (idm2002), York, England, 2-6 September, 2002