populations of the atomic hyper ne levels in the rare decay of a polarized
neutron into an antineutrino and a hydrogen atom are evaluated assuming the
existence of right-handed weak currents. A finite population is deduced fo
r the |1/2, 1/2; 1/2, 1/2 > decoupled hyperfine level which, within the res
trictions of the standard model, is required to be empty. The implications
for an experimental test are evaluated.