CPT violation and the nature of neutrinos

CPT violation and the nature of neutrinos

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CPT violation and the nature of neutrinos

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Barenboim Szuchman, Gabriela Alejandra Perfil; Beacom, John F.; Borissov, Liubomir; Kayser, Boris
This document is a artículoDate2002

Este documento está disponible también en : http://hdl.handle.net/10550/43443
In order to accommodate the neutrino oscillation signals from the solar, atmospheric, and LSND data, a sterile fourth neutrino is generally invoked, though the fits to the data are becoming more and more constrained. However, it has recently been shown that the data can be explained with only three neutrinos, if one invokes CPT violation to allow different masses and mixing angles for neutrinos and antineutrinos. We explore the nature of neutrinos in such CPT-violating scenarios. Majorana neutrino masses are allowed, but in general, there are no longer Majorana neutrinos in the conventional sense. However, CPT-violating models still have interesting consequences for neutrinoless double beta decay. Compared to the usual case, while the larger mass scale (from LSND) may appear, a greater degree of suppression can also occur.

    Barenboim Szuchman, Gabriela Alejandra Beacom, John F. Borissov, Liubomir Kayser, Boris 2002 CPT violation and the nature of neutrinos Physics Letters B 537 3-4 227 232

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