Study of Spin Interaction in Nuclei and Nuclear Reactions

该合作研究助学金的工作已于1985年8月在大阪举行的第六届国际核物理极化现象研讨会和1987年1月在大阪大学举行的极化现象研讨会上发表。测量了极化质子与氚的弹性散射中的退极化参数。用N-N相互作用和张量力的计算很好地再现了测量的&lt；K(_y^y)&gt；值。退极化参数对自旋-自旋相互作用很敏感，并测量了~lt；^(31)P&gt；(质子奇数)和&lt；^(29)Si&gt；(nwnuon奇数)对质子的弹性散射。通过这种分析，得到了自旋-自旋相互作用的标量项和张量项。通过对(&lt；-&gt；！p&gt；，2p)反应的分析，得到了有效的N-N相互作用、介质效应、非共面几何和相对论处理等信息。偏振氚的散射…更详细地从实验上研究了中、重核，理论上采用折叠模型和耦合-离散-连续道方法，其中考虑了重离子D态和破裂过程的影响。根据实验方的要求，总结了几篇关于N-N散射的报道中所使用的自旋参数的比较表，并给出了(d，p)反应的极化观测值之间的关系，包括极化转移。对(&lt；-&gt；！d&gt；，&lt；^6Li&gt；)反应的矢量分析能力的DWBA分析表明，重离子自旋轨道力的影响是显著的。(&lt；-&gt；，！d&gt；)和(&lt；-&gt；！d&gt；，&lt；-&gt；！p&gt；x)反应和(&lt；-&gt；！d&gt；！d&gt；)自旋反转电荷交换(&lt；-&gt；！d&gt；，&lt；^2HE&>；，d)反应也已被测量。由(&lt；pi^+&gt；，&lt；K^+&gt；)和(&lt；K^-&gt；，&lt；pi^-&gt；)反应产生的超核具有相当数量的极化和排列。它们有望用于超核态的电磁跃迁、电磁矩和弱衰变的光谱研究。我们必须作出深思熟虑的努力，制定明确的概念，寻找根本重要的问题。较少

The works supported by this Grant-in-Aid for Co-operative Research were presented at the Sixth International Symposium on Polarization Phenomena in Nuclear Physics, Osaka, August 1985 and Symposium on Polarization Phenomena, Osaka University, January 1987. The depolarization parameter in, the elastic scattering of polarized protons from deuterium has been measured. The measured <K(_y^y)> values are well reproduced by a calculation using the N-N interaction with a tensor force. The depolarization parameter is sensitive to the spin-spin interaction, and has been measured for the elastic scattering of protons from <^(31)P> (proton odd) and <^(29)Si> (nwutron odd). From this analysis scalar and tensor terms of the spin-spin interaction have been obtained. From the analysis of ( <->!p> , 2p) reactions, several informations have been obtained for the effective N-N interactions, the medium effect, the non-coplanar geometry and the relativistic treatment. The scatterings of polarized deuterons … More is investigated experimentally from medium-weight and heavy nuclei, and theoretically with a folding model and coupled-discretized-continuum-channels nethod which includes effects of deuteron D-state and breakup process. According to requests from experimental side, a comparison table of notations for spin parameters used in several reports on N-N scattering has been summarized, and the relationships between polarization observables including polarization transfers have been presented for (d,p) reactions. The DWBA analysis of the vector analyzing powers in the ( <->!d> , <^6Li> ) reaction shows the significant effect of the deuteron spin-orbit force. The polarization transfer coefficients for ( <->!p> , <->!n> ) and ( <->!d> , <->!p> x) reactions, and the spin-dependent observables in the spin-flip charge-exchange ( <->!d> , <^2He> ) reaction and singlet deuterons by ( <->!d> , d) reaction have also been measured. Hypernuclei produced by ( <pi^+> , <K^+> ) and ( <K^-> , <pi^-> ) reactions have shown to have sizable amounts of polarization and alignment. They are promising to be used for spectroscopic studies of electromagnetic transitions, electromagnetic moments and weak decays of hypernuclear states. We must make a deliberate effort to develop clear concepts and to look for problem of fundamental importance. Less