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

Understand

The scalar sector of the 3-3-1 model with axion like 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 axion like particle and a pseudoscalar with mass in the range 100 GeV to 1 TeV.