95 GeV excess in a $CP$-violating $\mu$-from-$\nu$ SSM

Abstract

The CMS and ATLAS have recently reported their results searching for light Higgs boson with mass around 95 GeV, based on the full Run 2 data set. In the framework of the CP-violating (CPV) $\mu \nu$SSM, we discuss a $\sim$ 2.9$\sigma$ (local) excess at 95 GeV in the light Higgs boson search in the diphoton decay mode as reported by ATLAS and CMS, together with a $\sim$ 2$\sigma$ excess (local) in the $b\bar{b}$ final state at LEP in the same mass range. By introducing CPV phases as well as by mixing CP-even Higgs and CP-odd Higgs, a lighter Higgs boson in the $\mu \nu$SSM can be produced, which can account for the "di-photon excess".

29 pages, 7 figures, accepted for publication in Physical Review D

References in corpus (8)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Search for Neutral MSSM Higgs Bosons at LEP
• Analysis of the parameter space and spectrum of the $\mu \nu$SSM
• LHC phenomenology of the $\mu \nu$SSM
• Neutrino Physics and Spontaneous CP Violation in the $\mu \nu$SSM
• Lepton flavor violation in the $\mu \nu$SSM with slepton flavor mixing
• Neutrino masses and mixing in $\mu \nu$SSM