Energy Spectra of Breakup Protons from the D(n, p)2n Reaction by 14.1 MeV Neutrons

Abstract

The energy spectra of breakup protons with energy larger than 1.2 MeV from the D( n , p )2 n reaction by 14.1 MeV neutrons have been measured, in terms of the absolute cross section (\(\mathrm{d}^{2}\sigma/\mathrm{d}\varOmega\mathrm{d}E_{p}\)), at 9 proton emission angles between 4° and 60° with a counter telescope. The measured breakup proton spectra agree fairly well with those measured by the Zagreb group at 4.8° and 10°, but are about 30% larger than their spectra at angles larger than 20°. The present spectra are in excellent agreement with the recent calculation of Cahill and Sloan at angles up to 60°, except for the discrepancv of 25% in the n-p final-state-interaction region of the spectrum for angles less than 20°. The differential cross section (\(\mathrm{d}\sigma/\mathrm{d}\varOmega\)) for the breakup reaction has been also obtained and discussed.