00 1 A demonstration that the observed neutrinos are not Majorana particles
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چکیده
A demonstration that the observed neutrinos are not Majorana particles Abstract It is shown that Majorana neutrinos cannot couple vectorially to the neutral-current SU(2) L x U(1) gauge field of the standard model. Since strong evidence for the existence of such a vector coupling in neutral current reactions has recently been presented by the Charm II collaboration, it is unlikely that the observed neutrinos are predominantly Majorana particles. Theorems on the " reappearance " of vector interactions in neutral current scattering of Majorana neutrinos and the indistinguishability of Majorana and Dirac neutrinos in the massless case are discussed critically.
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O ct 1 99 6 A demonstration that the observed neutrinos are not Majorana particles
A demonstration that the observed neutrinos are not Majorana particles Abstract It is shown that Majorana neutrinos cannot couple vectorially to the neutral-current SU(2) L x U(1) gauge field of the standard model. The absence of physics beyond the standard model (in particular Higgs-field configurations which lead to Majorana mass terms) is not assumed for this argument. Since the existence of...
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