1. Laboratoire René Bernas du CSNSM, Bat 108, F-91406, Orsay, France 2. Chalk River Nuclear Laboratories, Atomic Energy of Canada Limited, KOJ 1JO, Chalk River, Ontario, Canada
Abstract:
All significant experimental results on the3H-3He mass difference are reviewed. The weighted average of mass doublet measurements is 18596.7±3.6 eV, of tritium β measurements in magnetic spectrometers is 18610±7 eV and in implanted Si(Li) detectors is 18578±6 eV. The data within each group are consistent but there are discrepancies among the groups; possible explanations are proposed. Our best estimate for the3H-3He atomic mass difference is 18599.4 ± 3.0 eV.