PROBABILITY-DISTRIBUTION OF EXCITATIONS TO THE ELECTRONIC CONTINUUM OF HET+ FOLLOWING THE BETA-DECAY OF THE T(2) MOLECULE

We present a calculation of the probability density for the excitation to the molecular continuum of HeT+ following the beta decay of T2, pertinent to the investigation of chemical effects in the neutrino mass experiments. The relevant transition amplitude has been obtained by means of a novel technique that avoids the explicit calculation of the continuum states of HeT+, and delivers the properly normalized probability density which includes both the background and resonant scattering contributions. We found two distinct sharp resonances at 75 eV below the end point of beta spectrum where excess count rate has been observed in the recent neutrino mass experiment.