MSSM in view of PAMELA and Fermi-LAT

作者：Bajc Borut^*; Enkhbat Tsedenbaljir; Ghosh Dilip Kumar; Senjanovic Goran; Zhang Yue

来源：The Journal of High Energy Physics, 2010, 2010(5): 048.

DOI：10.1007/JHEP05(2010)048

• Beyond Standard Model
• Supersymmetric Standard Model
• Supergravity Models

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 2TeV. The perturbativity of the theory also implies an upper bound on its mass, approximately 6 - 7TeV.

• 出版日期2010-5