"Twin" Neutrinos: A Modified Two-Component Theory

Abstract

To overcome certain discrepancies between experiment and the predictions of conventional 2-component theory, a twin neutrino theory is proposed. In the more general formulation of this theory in part I, two different 2-component neutrinos ${\ensuremath{\nu}}_{1}$, ${\ensuremath{\nu}}_{2}$ of opposite screw-sense are introduced, together with their antiparticles ${\overline{\ensuremath{\nu}}}_{1}$, ${\overline{\ensuremath{\nu}}}_{2}$. In beta decay, one of these is coupled by $T$ and $V$ interactions, the other by $S$ and $A$ interactions. This eliminates all interference terms.In part II, the theory is specialized to the assumption ${\overline{\ensuremath{\nu}}}_{1}\ensuremath{\equiv}{\ensuremath{\nu}}_{2}$, i.e., to Majorana-type neutrinos. This more restricted theory is equally successful in explaining the results of the parity experiments. It is shown that the conventional objections to the Majorana theory need not apply to this twin-neutrino theory.