Neutrino and doubly charged Higgs boson phenomenology in flavored-TNMSSM

• Published in: Nuclear physics. B Vol. 974; p. 115640
• Main Authors: Ouahid, M.A., Ahl Laamara, R.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.01.2022; Elsevier
• ISSN: 0550-3213; 1873-1562
• DOI: 10.1016/j.nuclphysb.2021.115640

We develop a neutrino mass model based on A4×Z3 flavor symmetry in the context of the NMSSM extended by supersymmetric type II seesaw mechanism (flavored-TNMSSM). We show that the NMSSM-singlet contributes significantly to the light neutrino masses, leading to the trimaximal neutrino mixing and providing a source for CP violation. The model favors normal hierarchy for neutrino masses, and offers testable predictions for upcoming experiments aimed at developing the measurements of the parameters mνe, |mee|. We also show that the decay of the doubly charged Higgs boson (DCHB) into dilepton of the same sign is dominant; and that the muon-tau (μτ) channel is the most relevant, thus giving rise to a collider signature. We prove that the model allows LFV processes, such as τ±→e±μ∓e± and τ±→μ±e∓μ±. We find further that when the triplet VEV exceeds 0.5 eV, a discovery of the DCHB would be possible at the current run of the LHC; whereas for a broad part of the parameter space when the triplet VEV is less than about 0.5 eV, the DCHB can acquire mass up to few TeVs, which can be probed at HL-LHC, HE-LHC, and future 100 TeV hadron colliders.