Breakup of Deuterons by Protons

Results are given for the neutron spectra at zero degrees from the reaction $p+d\to 2p+n$ for a range of incident proton energies from $E_p=4.0\mathrm{}$ to $E_p=7.0\mathrm{}$ Mev. Also given are the spectra as a function of angle for $E_p=6.5\mathrm{}$ Mev. The observed shapes show systematic discrepancies from those given by the theory of Frank and Gammel; these discrepancies increase with increasing proton energy although the reaction yield is accurately given by the theory.