A comment on the measurement of neutrino masses in beta-decay experiments

摘要

We discuss the physics potential of future tritium ss-decay experiments having a sensitivity to a neutrino mass similar to root vertical bar Delta m(23)(2)vertical bar similar to 5 x 10(-2) eV. The case of three-neutrino mixing is analyzed. A negative result of such an experiment would imply that the neutrino mass spectrum is of normal hierarchical type. The interpretation of a positive result would depend on the value of the lightest neutrino mass; if the lightest neutrino mass satisfies the inequality min (m(j)) <