Effects of Negative-Energy Propagations in Deuteron-Nucleus Scattering : Nuclear Physics

概要

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The effects of negative-energy propagations in the effective optical potentials for relativistic deuteron-nucleus elastic scattering are investigated utilizing the Breit approach. First, we consider the effects of the (+-) and (-+) propagations. They represent that one of the nucleons in the deuteron propagates in its positive-energy state, while another propagates in negative-energy one. Second, the effects of the (--) propagation, which represents that both the nucleons propagate in their negative-energy states, are studied. It has been found that the characteristic features of the optical potentials near 400 MeV - the wine-bottle-bottom-shape of the central part and the enhanced spin-orbit strength - are pure relativistic effects mainly due to the (+-) and (-+) propagations, whereas the effects of the (--) propagation are small.
理論物理学刊行会の論文
1992-06-25