Using the (p<i>→</i>,p→ ’) reaction to study<i>ΔS=0</i>giant resonances

Abstract

Measurements of spin-flip probabilities for inelastic scattering of 318 MeV protons from $^{40}\mathrm{Ca}$ reveal that much of the background underlying the giant dipole and quadrupole resonances at small angles is from \ensuremath{\Delta}S=1 transitions. This holds the promise of allowing a much better estimate of this background than has previously been possible; one model-dependent parameter is necessary. Subsequent analysis with a first estimate of this parameter is presented.