Bound state beta-decay and kinematic search for neutrino mass.

A new method involving Doppler spectroscopy with laser techniques is proposed to observe bound state beta-decay of tritium. This process, although theoretically expected to occur, has not so far been observed. The proposed method is, in principle, capable of exposing a possible mass of the neutrino. The low source temperatures and laser spectroscopic resolutions necessary for a neutrino mass measurement, although extremely difficult to achieve, appear accessible with conceivable advances of these techniques.