  Speed plot and time delay analysis confirms a two-pole S-matrix structure of
the lowest 3/2+ level in 5He. Real parts of neutron-alpha elastic and
4He(n,d)3H reaction pole energies are 17.669+/-0.006 and 17.705+/-0.001 MeV
n-4He c.m., respectively. Neutron-alpha elastic resonance, uncorrected for
experimental energy spread, is characterized by deuteron and neutron partial
widths ca. 0.008 and 0.030 MeV suggested by previous time delay analysis.

Nuclear Theory;Nuclear Experiment