Non-Standard Higgs Decays in U(1) Extensions of the MSSM

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 E6 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.

38 pages, 1 figure, some minor changes to the text, references added

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Cited by in corpus (10)

• GUT Physics in the era of the LHC
• Dark Matter in a Constrained $E_6$ Inspired SUSY Model
• Dark matter candidates in the constrained Exceptional Supersymmetric Standard Model
• $E_6$ Motivated UMSSM Confronts Experimental Data
• Light sterile neutrinos, dark matter, and new resonances in a $U(1)$ extension of the MSSM
• E6 inspired composite Higgs model and 750 GeV diphoton excess
• Leptogenesis and Dark Matter-Nucleon Scattering Cross Section in the SE6SSM
• E_6 inspired composite Higgs model and baryon asymmetry generation
• TeV-scale leptoquark searches at the LHC and their E${}_6$SSM Interpretation
• Interactions of exotic neutralino dark matter with nucleons in $U(1)$ extensions of the MSSM originating from $E_6$ GUTs