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Elastic Scattering of He based on a Cluster Description
Elastic scattering observables (differential cross section and analyzing
power) are calculated for the reaction He(p,p)He at projectile energies
starting at 71 MeV/nucleon. The optical potential needed to describe the
reaction is derived describing He in terms of a 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 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.Comment: To be published in Phy. Rev.
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