Proton-deuteron radiative capture cross sections at intermediate energies

Abstract

Differential cross sections of the reaction $p(d,^3{\rm He})γ$ have been measured at deuteron laboratory energies of 110, 133 and 180 MeV. The data were obtained with a coincidence setup measuring both the outgoing $^3$He and the photon. The data are compared with modern calculations including all possible meson-exchange currents and two- and three- nucleon forces in the potential. The data clearly show a preference for one of the models, although the shape of the angular distribution cannot be reproduced by any of the presented models.

6 pages, 6 figures, accepted for publication in EPJA