The mu-problem, the NPQMSSM, and a light pseudoscalar Higgs boson for the LHC

Details The mu-problem, the NPQMSSM, and a light pseudoscalar Higgs boson for the LHC The mu-problem, the NPQMSSM, and a light pseudoscalar Higgs boson for the LHC

2012-01-31

arxiv.org/abs/1201.6547v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages with 3 figures

Scientific paper

Motivated by the mu-problem and the axion solution to the strong CP-problem, we extend the MSSM with one more chiral singlet field $X_e$. The underlying PQ-symmetry allows only one more term $X_e H_u H_d$ in the superpotential. The spectrum of the Higgs system includes a light pseudoscalar $a_X$ (in addition to the standard CP-even Higgs boson), predominantly decaying to two photons: $a_X \to \gamma \gamma$. Both Higgs bosons might be in the range accessible to current LHC experiments.

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