The n decay of the giant-monopole-resonance region in ${}_{}{}^{208}{}_{}{}^{}\mathrm{Pb}$ has been studied in an ($\alpha ,{\alpha }^{\prime }\mathrm{n}$) coincidence experiment at $E_{\alpha }=104\mathrm{}$ MeV. From the fast-neutron emission corresponding to the decay into the low lying single hole states in ${}_{}{}^{207}{}_{}{}^{}\mathrm{Pb}$ a direct decay component of ≅15% was estimated for the resonant strength. In addition, evidence for a preequilibrium decay was found.

• Received 24 January 1983

DOI:https://doi.org/10.1103/PhysRevC.29.418