We study inclusive spectra of backward emitted protons for proton- or (other elementary particles)-nucleus reactions. With a simple quasifree model, we observe that the spectator process dominates for the backward emission. With this reaction mechanism the high-momentum part of the inclusive proton spectra can be explained by the short-range nucleon-nucleon correlation.

NUCLEAR REACTIONS $d(p,p^{\prime })X$, C, Cu, $\mathrm{Ta}(p,p^{\prime })X$, $\mathrm{Ne}({\overline{\nu }}_{\mu },p)X$, $0.6<E<\mathrm{}25\mathrm{}$ GeV, proton backward emission, short-range correlation.

• Received 14 May 1979

DOI:https://doi.org/10.1103/PhysRevC.20.2316