The Oppenheimer-Phillips Process

摘要: The mechanism proposed by Oppenheimer and Phillips for the disintegration of nuclei deuterons with proton emission ($d\ensuremath{-}p$ reaction) is examined. A formula derived which expresses probability this process in terms sticking neutron (\textsection{}2) penetrability potential barrier. importance finite (rather than zero) nuclear radius pointed out calculated various values (\textsection{}3). energy distribution emitted protons found to be given directly (\textsection{}5). Therefore it may differ considerably from "ordinary" reactions containing relatively more high protons. measurement would allow direct conclusions about width low levels theory $\ensuremath{\alpha}$-decay therefore O-P reaction compared that ordinary reactions. prevail $d\ensuremath{-}p$ charges 25 higher; if leads a nucleus emits fast $\ensuremath{\beta}$-rays, will valid at still lower charges. relative as $d\ensuremath{-}n$ (on average) unity very light nuclei, decrease increasing atomic number until becomes prevalent, increase there on. excitation function up $Z\ensuremath{\sim}30$ an inadequate test (\textsection{}6). question secondary (cascade) following discussed such disintegrations (e.g. $d\ensuremath{-}pn$ or $d\ensuremath{-}p\ensuremath{\alpha}$) should rare deuteron energies below top barrier (\textsection{}7).