2000/06/23 by W. Sobków, Wieslaw Sobkow, Sobkow, Wieslaw
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0006270
REVTeX, 4 pages, references added, 1 eps figure; submitted to EPJ C
arxiv created 2002/03/28 · arxiv updated 2009/11/30
In this paper a scenario admitting the participation of the exotic right-handed scalar SR coupling in addition to the standard left-handed (V, A)L couplings in the low energy neutrino-electron scattering is considered. The main goal is to show how the presence of the right-handed neutrinos in the (νe) scattering changes the laboratory differential cross section in relation to the Standard Model prediction. We consider the (νe) process at the level of the four-fermion point interaction. Muon-neutrinos are assumed to be massive and to be polarized Dirac fermions. In the laboratory differential cross section the new interference term between the the standard VL coupling of the left-handed neutrino and exotic SR coupling of the right-handed neutrino appears which does not vanish in the limit of massless neutrino. This new contribution, including the information about the transverse neutrino polarization, generates the azimuthal assymetry in the angular distribution of the recoil electrons. This regularity would be the proof of the presence of R-handed neutrinos in the νe scattering.