17 KEV NONDEGENERATE MAJORANA NEUTRINO AND NEUTRINO MIXING

We study the limits on the elements of the neutrino mixing matrix consistent with neutrinoless double beta decay and the neutrino oscillation experiments as a function of the mixing probability (x) of v(e) with the 17 keV neutrino. We considered all x between 0.003 and 0.03, and found that x > 0.015 is not allowed. Stringent limits on m(v-mu) (when m(v-mu) > m(v-tau)) and the mass difference (m(v-mu) - m(v-tau)) (when v-mu and v-tau form a pseudo-Dirac particle) are found. Allowed values of the various mixing angles are obtained as function of x, when v(e), v-mu and v-tau are nondegenerate Majorana neutrinos.