Spin correlation coefficient for proton-3He elastic scattering at 100 MeV
Spin correlation coefficient for proton-3He elastic scattering at 100 MeV
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100 MeV 质子-3He 弹性散射的自旋相关系数
DOI：
10.1103/physrevc.106.054002
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发表时间：
2022
影响因子：
3.1
通讯作者：
Wakasa
中科院分区：
文献类型：
--
作者：
Watanabe A.;Nakai S.;Sekiguchi K.;Deltuva A.;Goto S.;Hatanaka K.;Hirai Y.;Ino T.;Inomoto D.;Inoue M.;Ishikawa S.;Itoh M.;Kanda H.;Kasahara H.;Maeda Y.;Miki K.;Nonaka K.;Ong H. J.;Oshiro H.;Sakai D.;Sakai H.;Shibuya S.;Tran D. T.;Umetsu H.;Utsuki Y.;Wakasa
我们给出了质心系统中 100 MeV 角度下弹性散射的测量自旋相关系数。将数据和现有横截面数据与基于实际核子-核子势的严格四核子散射计算进行比较。两个可观测值的横截面最小值周围的区域存在很大差异。通过耦合通道方法估计的等压线效应对于横截面来说很小。同时，等压线效应提高了与数据的一致性。弹性散射振幅的分析暗示了增强振幅中的矢量分量的三核子力（）的必要性。获得的结果表明，自旋相关系数扩展了核与等压线相互作用的知识或包括在核子-氘核弹性散射中被掩盖的那些相互作用的知识。
We present the measured spin correlation coefficientforelastic scattering at 100 MeV at the angles–in the center-of-mass system. Thedata and the existing cross section data are compared with rigorous four-nucleon scattering calculations based on realistic nucleon-nucleon potentials. Large differences are seen in the regime around the cross section minimum for both observables. The-isobar effects estimated by thecoupled-channels approach are small for the cross section. Meanwhile, in, the-isobar effects improve the agreement with the data. The analysis of theelastic scattering amplitudes implies the necessity of three-nucleon forces () that enhance the vector components in the amplitudes. The obtained results indicate that the spin correlation coefficientexpands the knowledge of the nuclear interactions with theisobar or those includingthat are masked in nucleon-deuteron elastic scattering.