The scattering of protons from He^3

Abstract

The elastic scattering of protons from He^3 has been investigated from 2.0 to 4.8 MeV with the Rice University Van de Graaff accelerator and a small-volume, gas scattering chamber. Nine excitation curves were measured for centre-of-mass angles between 39.23° and 166°, and angular distributions have been measured for proton energies of 2.01, 3.01, 3.99, and 4.54 MeV. The phase shifts derived from these experimental data and from the data obtained at other laboratories are compared with the theoretical calculations of Bransden and Robertson. These results tend to favour the Serber rather than the symmetrical type of exchange interaction for the nucleon-nucleon potential.

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