PHYSICAL REVIEW D 107, 095030 (2023)

ISSN: 2470-0029, SCIE

Higgs sector phenomenology in the 3-3-1 model with an axionlike particle

V. H. Binh, D. T. Binh, A. E. Cárcamo Hernández, D. T. Huong, D. V. Soa, and H. N. Long

The scalar sector of the 3-3-1 model with an axionlike particle is studied in detail. In the model under consideration, there are two kinds of scalar fields: the bilepton scalars carrying lepton number two and the ordinary ones without lepton number. We show that there is no mixing among these two kinds of scalar fields.We analyze in detail the CP-odd scalar sector of the model to find the physical fields of the axionlike particle and a pseudoscalar with mass in the range 100 GeV to 1 TeV. The results are different from others which have been published before. The CP-even scalar sector of the model is analyzed as well. The results of our analysis of the scalar sector allow us to accommodate scalar masses in the 100 GeV–1 TeV region. Furthermore we analyze the implications of the model in several flavor changing neutral decays of the top quark as well as in rare top quark decays. Besides that, the leptonic decays of the SM like Higgs boson as well as the meson oscillations are also analyzed. Our numerical analysis show that the model under consideration is consistent with the experimental constraints imposed by these processes.

DOI: 10.1103/PhysRevD.107.095030

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