Proton scattering by short lived sulfur isotopes

Elastic and inelastic proton scattering has been measured in inverse kinematics on the unstable nucleus ⁴⁰S. A phenomenological distorted wave Born approximation analysis yields a quadrupole deformation parameter β2 = 0.35±0.05 for the 2⁺1 state. Consistent phenomenological and microscopic proton scattering analyses have been applied to all even-even sulfur isotopes from A = 32 to A = 40. The second analysis used microscopic collective model densities and a modified Jeukenne-Lejeune-Mahaux nucleon-nucleon effective interaction. This microscopic analysis suggests the presence of a neutron skin in the heavy sulfur isotopes. The analysis is consistent with normalization values for λv and λw of 0.95 for both the real and imaginary parts of the Jeukenne-Lejeune-Mahaux potential.

Duke Scholars

Author John H Kelley Physics