A new U(1) model anomaly free for three families to address fermion mass hierarchy and neutrino physics

S. F. Mantilla, R. Martinez

A new non-universal abelian extension ${\mathrm{G}}_{\mathrm{SM}}\otimes {\mathrm{U}(1)}_X$ to the Standard Model free from chiral anomalies is presented. The new $X$ charges distinguish amon…