H2,3,4He(p→,p’) and3,4He(p→,d’) continuum yields for 100 and 150 MeV protons

The continuum cross sections and analyzing powers from the $^{2}\mathrm{H}$, $^{3}$,4He(p\ensuremath{\rightarrow},p') and $^{3}$,4He(p\ensuremath{\rightarrow},d') reactions were measured for 98.7 and 149.3 MeV polarized protons in the angular range 17.5\ifmmode^\circ\else\textdegree\fi{} to 60\ifmmode^\circ\else\textdegree\fi{}. The $^{2}\mathrm{H}$ and $^{3}\mathrm{He}$ data show strong quasifree contributions with more ambiguous results for $^{4}\mathrm{He}$. These data are compared with distorted-wave impulse approximation calculations based on quasifree nucleon and deuteron knockout. Overall, the agreement between theory and experiment is moderately good. However, some significant discrepancies are observed and corrections to the simple model are discussed.