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arXiv · hep-ph/9907290

Decoupling of Massive Right-handed Neutrinos

Paramita Adhya·D. Rai Chaudhuri
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Abstract

We investigate the effect of B+L - violating anomalous generation of massive right-handed neutrinos on their decoupling, when the right-handed neutrino mass is considerably greater than the right-handed gauge boson masses. Considering normal annihilation channels, the Lee-Weinberg type of calculation, in this case, gives an upper bound of about 700 Gev, which casts doubt on the existence of such a right-handed neutrino mass greater than right-handed gauge boson masses. We examine the possibility that a consideration of anomalous effects related to the SU(2)_R gauge group may turn this into a lower bound of the order of 100 Tev.

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Paramita Adhya, D. Rai Chaudhuri. 1999-07-09. Decoupling of Massive Right-handed Neutrinos. https://doi.org/10.1103/physrevd.61.033002

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