Backward angle<i>n</i>-<i>p</i>differential cross section at 96 MeV

Abstract

An accurate measurement of the n-p differential cross section, in the angular range 116--180\ifmmode^\circ\else\textdegree\fi{}, at 96 MeV is reported. Between 150\ifmmode^\circ\else\textdegree\fi{} and 180\ifmmode^\circ\else\textdegree\fi{} the angular distribution is steeper than earlier measurements and potential predictions. The sensitivity of the differential cross section to isospin-singlet, J\ensuremath{\le}4 phase-shift parameters was studied, and it was found that the observed difference at the most backward angles is sensitive mainly to L\ensuremath{\ge}3 phase shifts.