International Journal of Modern Physics A 36, 2150179 (2021)

ISSN: 0217-751X, SCIE

Neutrino energy-loss rate in 331β model

D. T. Binh, L. T. Hue, V. H. Binh and H. N. Long

We evaluate the stellar energy-loss rates Q due to the production of neutrino pair in 3-3-1 models. The energy loss rate Q is evaluated for different values of β=±1/√(3),±2/√(3),±√(3) in which β is a parameter used to define the charge operator in the 331 models. We show that the contribution of dipole moment to the energy loss rate is small compared to the contribution of new natural gauge boson Z′. The correction Q compared with that of Standard Model is evaluated and do not exceed 14% and is highest with β=–√(3). Of all the evaluated models, model with β=−√(3) give a relative large Q correction for the mass of Z′mZ′≤4000 GeV. This mass range is within the searching range for Z′ boson at LHC.

DOI: https://doi.org/10.1142/S0217751X21501797