COLLISION MATRIX FOR (n,d) AND (p,d) REACTIONS

摘要: The contributions to ($n, d$), ($p, d$) reactions and their inverses from the pickup stripping mechanisms are considered as corrections compound-nucleus or $R$-matrix theory of nuclear reactions. In an reaction, for example, neglects interaction incident neutron with target-nucleus proton "tails" which extend beyond radius. correction collision-matrix component, reaction amplitude, appears matrix element neglected involving exact wave function approximate system not having interaction; a distorted-wave Born approximation is used in former replaced by one latter type appropriate radiation condition. An explicit expression given component which, together contribution, can be substituted directly into formulas Blatt Biedenharn total cross sections angular distributions. general, distributions contain interference terms addition straight contributions. If distorted deuteron spherical partial waves assumed depend only on momenta, explicitly spin channel spins, formula Tobocman obtained while Butler's if plane instead waves. There discussions various approximations, exchange terms, question