Study of the ¹³C(³He, α)¹²C reaction at energies of 50 and 60 MeV

Abstract

Cross sections for the 13C(3He, α)12C reaction were measured for 12C states up to excitation energies of about 20 MeV for 3He energies of 50 and 60 MeV. An analysis of the measured angular distributions was carried out using the Coupled Channels Born Approximation method under the assumption of a direct one-step mechanism of picking up a neutron from the 13C nucleus. In these calculations, the real parts of the implemented potentials were constructed within the framework of the double folding model. This analysis made it possible to extract the values of the spectroscopic factors for the 13C g.s. → 12C g.s. (12C*) + n configurations, which were found to be in reasonable agreement with theoretical predictions.

Study of highly excited states in 16O with 3He+13C reactions at low energies

“…From the experimental point of view, very few data are available in the literature. In particular, they have been mainly obtained at moderately-high energies, where more direct reaction mechanisms are typically favoured as opposed to the formation of a compound nucleus [34][35][36][37]. In particular, Kellogg and Zurmuhle [34] studied the reaction at 12, 15 and 18 MeV, proposing a direct pick-up mechanism to describe the trend of angular distributions.…”