JMP  Vol.6 No.8 , July 2015
Bounds on the Number of Light Neutrinos Species, g'1 Coupling and Z - Z′ Mixing Angle in a U(1)B-L Model
ABSTRACT
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.

Cite this paper
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.
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