Constraints on invisible Higgs decay in MSSM in the light of diphoton rates from the LHC

Details Constraints on invisible Higgs decay in MSSM in the light of diphoton rates from the LHC Constraints on invisible Higgs decay in MSSM in the light of diphoton rates from the LHC

2012-02-23

arxiv.org/abs/1202.5190v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 4 figures

Scientific paper

We examine the parameter space of the purely phenomenological minimal super- symmetric standard model (MSSM), without assuming any supersymmetry breaking scheme. We find that a large region of the parameter space can indeed yield the lightest neutral Higgs mass around 125 GeV, as suggested by the recent ATLAS data, and also lead to event rates around, or slightly higher than, the standard model expectation in the two-photon and four-lepton channels. Using a lightest neutralino that is considerably lighter than the Higgs, we find that the 'invisible' decay of the Higgs into a pair of neutralinos upto about 10% can be consistent with the current data from the Large Hadron Collider (LHC).

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