Backward production of high energy protons in the (p,2p) reaction inLi6

Abstract

Two magnetic spectrometers have been utilized to measure the momentum spectra and angular distributions of forwardly produced protons in coincidence with backwardly emitted protons (105\ifmmode^\circ\else\textdegree\fi{}) of momenta $q=0.35, 0.4, \mathrm{and} 0.55$ GeV/c in the reaction $p(0.8 \mathrm{GeV})+^{6}\mathrm{Li}\ensuremath{\rightarrow}p+p+X$. The data demonstrates an unexpected new feature: the angular independence of the ratio of coincidence to forward singles spectra.NUCLEAR REACTIONS $^{6}\mathrm{Li}$($p$,$2p$), $^{9}\mathrm{Be}$($p$,$2p$), "cumulative" region; deduced excitation spectrum, test of single particle approximation.