SuperWIMP dark matter and 125 GeV Higgs boson in the minimal GMSB

Understand

Recently, both the ATLAS and CMS experiments have observed an excess of events that could be the first evidence for a 125 GeV Higgs boson.

• We investigate an implication of the CP-even Higgs boson with mass around 125 GeV in the context of the minimal gauge mediated supersymmetry breaking (mGMSB).
• In mGMSB, gravitino is the lightest sparticle (LSP) and hence the dark matter candidate.
• We consider the so-called superWIMP scenario where the dark matter gravitino is non-thermally produced by the decay of the next-to-LSP (NLSP) bino-like neutralino after its freeze-out.