Speaker
Prof.
Andrés Fernando Castillo Ramirez
(Universidad Nacional de Colombia)
Description
Constraints from unitarity perturbativity are studied in the Yukawa sector of a SU (2)L × U (1)Y × U (1)B−L
model. In this scenario, besides three right handed neutrinos which are included to cancel chiral anomalies, it is also
postulated a complex scalar singlet for the spontaneous symmetry breaking of the extended gauge sector U (1)B−L
and to give mass to the associated Z ′ boson. From different scattering processes involved neutrinos and Higgs states,
exclusion regions are obtained for neutrino masses and mixing angles.
Primary author
Prof.
Andrés Fernando Castillo Ramirez
(Universidad Nacional de Colombia)
Co-authors
Prof.
Carlos Gomez Tarazona
(Universidad Nacional de Colombia)
Dr
John Morales Aponte
(Associated Professor at Universidad Nacional de Colombia)
Dr
Rodolfo Diaz
(Associated Professor at Universidad Nacional de Colombia)