Neutron Emission in Deep-Inelastic Collisions ofO16onNb93at 204 MeV

Abstract
Spectra and angular distributions of neutrons in coincidence with light fragments produced in deep-inelastic collisions of O16 on Nb93 at 204 MeV have been measured. A significant number of neutrons are emitted in the forward direction with beamlike velocities. Fits of detailed spectra and angular distributions were not possible if one assumed evaporation from accelerated fragments. This presents the first direct evidence for nonequilibrium neutron emission in deep-inelastic reactions.