Radiative neutrino decay in left-right models

Details Radiative neutrino decay in left-right models Radiative neutrino decay in left-right models

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrvd..34.3444c&link_type=abstract

Physical Review D (Particles and Fields), Volume 34, Issue 11, 1 December 1986, pp.3444-3448

Mathematics

Logic

10

Background Radiations

Scientific paper

In the framework of SU(2)L×SU(2)R×U(1)B-L gauge models we calculate the lifetime for the decay χB-->χA+γ where χ denotes a Majorana neutrino. We find that if CP is conserved, the right-handed currents can significantly alter the lifetime from the SU(2)L×U(1)Y estimate only if χA and χB have opposite CP eigenvalues. In the see-saw model of neutrino mass, even with the most favorable choice of parameters, we get too long a lifetime to detect the photon flux coming from the decay of the neutrinos in the cosmological background.

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