Abstract
We investigate gravitino dark matter produced thermally at high temperatures and in decays of a long-lived sneutrino. We consider the Non-Universal Higgs Model and a generalized gauge mediation model, and in each case identify sneutrino LOSP regions of the parameter space consistent with the mass of the Higgs-like boson observed at the LHC. We apply relevant collider and cosmological bounds, including constraints from Big Bang Nucleosynthesis and from warm dark matter on large scale structures. Generally, we find allowed values of the reheating temperature T R below 109 GeV, i.e. somewhat smaller than the values needed for thermal leptogenesis, even with a conservative lower bound of 122 GeV on the Higgs mass. Requiring mass values closer to 126 GeV implies T R below 107 GeV and the gravitino mass less than 10 GeV.
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ArXiv ePrint: 1212.5587
On leave of absence from the University of Sheffield, U.K. (Leszek Roszkowski)
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Roszkowski, L., Trojanowski, S., Turzyński, K. et al. Gravitino dark matter with constraints from Higgs boson mass and sneutrino decays. J. High Energ. Phys. 2013, 13 (2013). https://doi.org/10.1007/JHEP03(2013)013
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DOI: https://doi.org/10.1007/JHEP03(2013)013