Author(s)

A. González-Sánchez^1,2, A. Gutiérrez-Rodríguez^1*, M. A. Hernández-Ruíz³

¹Facultad de Fsica, Universidad Autónoma de Zacatecas, Zacatecas, México.
²LERMA, CNRS UMR 8112, Observatoire de Paris, Paris, France.
³Facultad de Ciencias Qumicas, Universidad Autónoma de Zacatecas, Zacatecas, México.

The constraints on the number of neutrinos generations, g'₁ coupling and Z - Z′ mixing angle through the invisible width method, and in the framework of a U(1)_B-L model are obtained. Based on the experimental value reported by the LEP for the rate , we obtained a bound on the g'₁ coupling, . In addition, we derive 90% C.L. bounds on the Z - Z′ mixing angle , improving the existing bounds by one order of magnitude.

Ordinary Neutrinos, Neutral Currents, Models beyond the Standard Model

González-Sánchez, A. , Gutiérrez-Rodríguez, A. and Hernández-Ruíz, M. (2015) Bounds on the Number of Light Neutrinos Species, g'₁ Coupling and Z - Z′ Mixing Angle in a U(1)_B-L Model. Journal of Modern Physics, 6, 1077-1084. doi: 10.4236/jmp.2015.68112.