Depolarization in p-15N elastic scattering and large tensor spin-spin interaction

Abstract We have measured the angular distribution of the depolarization parameter K y y′ in p- 15 N elastic scattering at 65 MeV. The deviation of K y y′ from unity is large and indicates the existence of a nucleon-nucleus spin-spin interaction. The DWBA analysis shows that the measured K y y′ data imply a large contribution from the tensor part of the spin-spin potential.