Abstract
In U(1) extensions of the Minimal Supersymmetric extension of the Standard Model there is a simple mechanism that leads to a heavy Z ′ boson with a mass which is substantially larger than the supersymmetry breaking scale. This mechanism may also result in a pseudoscalar state that is light enough for decays of the 125 GeV Standard Model-like Higgs boson into a pair of such pseudoscalars to be kinematically allowed. We study these decays within E 6 inspired supersymmetric models with an exact custodial symmetry that forbids tree-level flavor-changing transitions and the most dangerous baryon and lepton number violating operators. We argue that the branching ratio of the lightest Higgs boson decays into a pair of the light pseudoscalar states may not be negligibly small.
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ArXiv ePrint: 1410.6288
On leave of absence from the Theory Department, SSC RF ITEP of NRC "Kurchatov Institute", Moscow, Russia. (R. Nevzorov)
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Athron, P., Mühlleitner, M., Nevzorov, R. et al. Non-standard higgs decays in U(1) extensions of the MSSM. J. High Energ. Phys. 2015, 153 (2015). https://doi.org/10.1007/JHEP01(2015)153
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DOI: https://doi.org/10.1007/JHEP01(2015)153