CERN Accelerating science

Article
Report number	arXiv:1002.3631
Title	MSSM in view of PAMELA and Fermi-LAT
Author(s)	Bajc, Borut ; Enkhbat, Tsedenbaljir ; Ghosh, Dilip Kumar ; Senjanovic, Goran ; Zhang, Yue
Publication	2010
Imprint	22 Feb 2010
Note	Comments: 20 pages, 9 figures Comments: Published version, figures updated
In:	JHEP 05 (2010) 048
DOI	10.1007/JHEP05(2010)048
Subject category	Particle Physics - Phenomenology
Abstract	We take the MSSM as a complete theory of low energy phenomena, including neutrino masses and mixings. This immediately implies that the gravitino is the only possible dark matter candidate. We study the implications of the astrophysical experiments such as PAMELA and Fermi-LAT, on this scenario. The theory can account for both the realistic neutrino masses and mixings, and the PAMELA data as long as the slepton masses lie in the $500-10^6 $TeV range. The squarks can be either light or heavy, depending on their contribution to radiative neutrino masses. On the other hand, the Fermi-LAT data imply heavy superpartners, all out of LHC reach, simply on the grounds of the energy scale involved, for the gravitino must weigh more than 2 TeV. The perturbativity of the theory also implies an upper bound on its mass, approximately $6-7 $TeV.
Copyright/License	arXiv nonexclusive-distrib. 1.0

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