Theoretical study of β-decay of a negative tritium ion

A calculation of the probability of the main β-decay channel of a negative tritium ion is described as one of the processes that can affect the β-spectrum of a tritium source near the end point. The appropriate energy parameters have been calculated. This process should be taken into account in interpreting measured β-spectra near the end point in connection with determining the neutrino rest mass. Zh. éksp. Teor. Fiz. 112, 1537–1542 (November 1997)