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arXiv · 1212.1288

Diphoton Rate of the Standard-Model-Like Higgs Boson in the Extra U(1) Extended MSSM

Kingman Cheung·Chih-Ting Lu·Tzu-Chiang Yuan
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Abstract

Motivated by the excess in the diphoton production rate of the Higgs boson at the Large Hadron Collider (LHC), we investigate the possibility that one of the CP-even Higgs bosons of the extra U(1) extended minimal supersymmetric standard model can give a consistent result. We scan the parameter space for a standard-model-like Higgs boson such that the mass is in the range of 124-127 GeV and the production rate σxB of the WW*, ZZ* modes are consistent with the standard model (SM) values while that of γγis enhanced relative to the SM value. We find that the SM-like Higgs boson is mostly the lightest CP-even Higgs boson and it has a strong mixing with the second lightest one, which is largely singlet-like. The implications on Zγproduction rate and properties of the other Higgs bosons are also studied.

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Kingman Cheung, Chih-Ting Lu, Tzu-Chiang Yuan. 2013-03-25. Diphoton Rate of the Standard-Model-Like Higgs Boson in the Extra U(1) Extended MSSM. https://doi.org/10.1103/physrevd.87.075001

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