Spin Determination from Compound Nuclear Reaction Yields

Abstract

The relative population of the 2+ levels at 243 and 288 keV and the 3+ levels at 390 and 426 keV in 62Cu via the 62Ni(p, n)62Cu reaction has been compared with the theoretical prediction of the Hauser?Feshbach statistical compound nuclear reaction model. Whereas the yields of the 243, 288, and 426 keV levels are in accord with the Hauser?Feshbach calculations, the observed yield of the 390 keV 3+ level is anomalously low by a factor of six to seven.