Neutron decay of deep-hole states populated by the 208Pb(3He,α)207Pb reaction at 102 MeV

Abstract Neutron decay of excited hole states populated by the 208 Pb( 3 He,α) reaction at an energy of 102 MeV has been investigated. The α-particles were analysed in a magnetic spectrograph positioned at 1.4° and detected with a multi-wire drift chamber. Excitation energies in 207 Pb up to 25 MeV were studied. An array of neutron detectors was positioned around the target at angles ranging from 68° to 209°. The neutron data were analysed in terms of decay into final states, using statistical-model calculations as a tool to extract non-statistical decay.