Abstract
We study the impact of -parity violating supersymmetry (RPV SUSY) on the 125 GeV Higgs production and decay modes at the LHC. We assume a heavy SUSY spectrum with multi-TeV squarks and SU(2) scalar singlets as well as the decoupling limit in the SUSY Higgs sector. In this case the lightest -even Higgs is SM-like when -parity is conserved. In contrast, we show that when R-parity violating interactions are added to the SUSY framework, significant deviations may occur in some production and decay channels of the 125 GeV Higgs-like state. Indeed, we assume a single-flavor (mostly third generation) Bilinear RPV (BRPV) interactions, which generate Higgs-sneutrino mixing, lepton-chargino mixing and neutrino-neutralino mixing, and find that notable deviations of may be expected in the Higgs signal strength observables in some channels, e.g., in , . Moreover, we find that new and detectable signals associated with BRPV Higgs decays to gauginos, and , may also arise in this scenario. These decays yield a typical signature of (, , ) that can be much larger than in the SM, and may also be accompanied by an enhancement in the diphoton signal . We also examine potential interesting signals of Trilinear R-parity violation (TRPV) interactions in the production and decays of the Higgs-sneutrino BRPV mixed state (assuming it is the 125 GeV scalar) and show that, in this case also, large deviations up to are expected in e.g., , , which are sensitive to the coupling product.
- Received 2 October 2019
DOI:https://doi.org/10.1103/PhysRevD.100.115051
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Published by the American Physical Society