Spin-dependent scattering of deeply bound nucleons
Spin-dependent scattering of deeply bound nucleons
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深度束缚核子的自旋相关散射
DOI：
10.1103/physrevc.57.1756
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发表时间：
1998
影响因子：
3.1
通讯作者：
Y. Ye
中科院分区：
文献类型：
--
作者：
C. A. Miller;K. Hicks;R. Abegg;M. Ahmad;N. Chant;D. Frekers;P. Green;L. G. Greeniaus;D. Hutcheon;P. Kitching;D. Mack;W. Mcdonald;W. C. Olsen;R. Schubank;P. Roos;Y. Ye
独家测量的分析能力和两个自旋转移可观的核子敲除从16 O目标，在运动学条件选择强调在核内部的相互作用。分析的功率数据大大减少，与扭曲波脉冲近似~DWIA！使用自由核子-核子相互作用，特别是用于敲除深度结合的1 s 1/2核子。在计算中包含相互作用的密度依赖性改进了与数据的一致性，但不能提供一个令人满意的描述核子从16 O敲除。自旋-轨道扭曲强烈影响DWIA预测的1 s 1/2分析功率在大部分的实验运动学范围内，但值得注意的是不接近的点可以忽略不计的反冲动量。因此，这些数据提供了约束的光学势和独立的两体有效相互作用。@S0556-2813~98！02104-9# PACS编号~s！：25.40.Ep，24.70.1s，24.10.Eq，13.75.2n
Exclusive measurements of the analyzing power and two spin-transfer observables for nucleon knockout from an 16 O target are presented, at kinematic conditions chosen to emphasize interactions in the nuclear interior. The analyzing power data are substantially reduced in comparison with values calculated in the distorted wave impulse approximation ~DWIA! using the free nucleon-nucleon interaction, particularly for knockout of the deeply bound 1s 1/2 nucleons. Inclusion of density dependence for the interaction in the calculations improves the agreement with the data, but does not provide a satisfactory description for nucleon knockout from 16 O. Spin-orbit distortions are shown to strongly affect the DWIA predictions of the 1 s 1/2 analyzing powers over most of the experimental kinematic range, but notably not near the points of negligible recoil momentum. Hence these data offer constraints on the optical potentials and independently on the two-body effective interaction. @S0556-2813~98!02104-9# PACS number~s!: 25.40.Ep, 24.70.1s, 24.10.Eq, 13.75.2n