Lepton universality violation in the MF331 model

2023/04/06 by P. N. Thu, N. T. Duy, Thu, P. N. +5 · 1 citation
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.2304.03003

openalex publication_date 2023/04/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We perform a detailed study of the b → c τν and b → s l⁺ l^- processes in a minimal flipped 331 model based on the SU(3)_C× SU(3)_L× U(1)_N gauge symmetry. The non universal SU(3)_L × U(1)_N symmetry in the lepton sector gives rise to non universal neutral and charged currents involving heavy non SM gauge bosons and SM leptons that yield radiative contributions to the b → s, b→ c, s→ u and d→ u transitions arising from one loop level penguin and box diagrams. We found that the observables related to these transitions agree with their experimental values in a region of parameter space that includes TeV scale exotic up type quarks, within the LHC's reach.

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