Mansi Dhuria and Aalok Misra Gravitino Dark Matter in (nearly) SLagy D3D7 mSplit SUSY
75 - 83
2013
7
1
International Journal of Mathematical, Computational, Physical, Electrical and Computer Engineering http://waset.org/publications/14425
http://waset.org/publications/73
World Academy of Science, Engineering and Technology
In the context of large volume Big Divisor (nearly)
SLagy D3D7 μSplit SUSY 1, after an explicit identification
of first generation of SM leptons and quarks with fermionic superpartners
of four Wilson line moduli, we discuss the identification of
gravitino as a potential dark matter candidate by explicitly calculating
the decay life times of gravitino (LSP) to be greater than age of
universe and lifetimes of decays of the coNLSPs (the first generation
squarkslepton and a neutralino) to the LSP (the gravitino) to be
very small to respect BBN constraints. Interested in nonthermal
production mechanism of gravitino, we evaluate the relic abundance
of gravitino LSP in terms of that of the coNLSPs by evaluating
their (co)annihilation cross sections and hence show that the former
satisfies the requirement for a potential Dark Matter candidate. We
also show that it is possible to obtain a 125 GeV light Higgs in our
setup.
International Science Index 73, 2013