Pion elastic and inelastic scattering fromSm152

Abstract
Cross sections for pion elastic and inelastic scattering to the ground state and the 0.122 MeV 2+ state of Sm152 are presented. Coupled channel and distorted-wave impulse approximation analysis of the data indicate that the neutron quadrupole deformation parameter β2(n) is nearly equal to the proton quadrupole deformation parameter β2(p).