Theory of neutron-deuteron break-up at 14.4 MeV

Abstract

Abstract We report numerical calculations of proton spectra for three separable potential models of the three-body break-up reaction n+d → n+n+p, at a neutron laboratory energy of 14.4 MeV. The first (the YY model) is that used by Aaron and Amado, but with somewhat different results. The second (the YT model) replaces the Yamaguchi form factor for the singlet nucleon-nucleon interaction by that proposed recently by Tabakin. Both the YY and YT models assume charge independence, and have a singlet n-p and n-n scattering length of −24 fm. The third model (YYY) abandons the charge independence of the YY model, and has singlet n-p and n-n scattering lengths of −24 and −16 fm respectively. The three models are compared with experiment, with particular emphasis on the n-n final-state interaction region.