Collinearity in the reaction p+d→p+p+n at E_p = 7.5 MeV

Abstract

In view of the controversial situation concerning the existence of a “collinearity peak” we continued the series of recent measurements on the p+d-breakup in collinear geometry down to very low energy. Spectra of p-p and n-p coincidence were taken and were compared with Faddeev calculations (one of them including a Tucson 3N-force). Care was taken to achieve good statistics and low background in the spectra. No evidence for a collinearity Peak could be detected.