Elastic Scattering of ${}^6$He based on a Cluster Description

Abstract

Elastic scattering observables (differential cross section and analyzing power) are calculated for the reaction ${}^6$He(p,p)${}^6$He at projectile energies starting at 71 MeV/nucleon. The optical potential needed to describe the reaction is derived describing ${}^6$He in terms of a ${}^4$He-core and two neutrons. The Watson first order multiple scattering ansatz is extended to accommodate the internal dynamics of a composite cluster model for the ${}^6$He nucleus scattering from a nucleon projectile. The calculations are compared with the recent experiments at the projectile energy of 71 MeV/nucleon. In addition, differential cross sections and analyzing powers are calculated at selected higher energies.

Comments: To be published in Phy. Rev. C