测量质子 $$^{{textbf {3}}$ He 弹性散射的自旋相关系数 $${varvec{C}}_{{varvec{y}}, {\varvec{y}}$

IF 1.7 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Few-Body Systems Pub Date : 2024-03-19 DOI:10.1007/s00601-024-01891-8

A. Watanabe, S. Nakai, K. Sekiguchi, S. Goto, K. Hatanaka, Y. Hirai, T. Ino, D. Inomoto, M. Inoue, S. Ishikawa, M. Itoh, H. Kanda, H. Kasahara, Y. Maeda, K. Miki, K. Nonaka, H. J. Ong, H. Oshiro, D. Sakai, H. Sakai, S. Shibuya, D. T. Tran, H. Umetsu, Y. Utsuki, T. Wakasa

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引用次数: 0

摘要

我们展示了在质心系统中，100MeV的p-(^3\)He弹性散射在角度$\theta _\mathrm{c.m.}=46.9^\circ$-$149.2^\circ$ 时测得的自旋相关系数$C_{y,y}$。实验使用 100 MeV 极化质子束与极化 $^3$He 靶结合进行。质子束被注入到靶上，通过使用由塑料和NaI(Tl)闪烁体组成的E-(\Delta E\) 探测器来探测散射质子。这些数据与基于现实 NN 电位的严格数值计算以及 $\Delta $-等离子体激发进行了比较。得到的结果表明，（C_{y,y}\）扩展了对（$△ $-等边线）核相互作用的认识，或者是那些包括在核子-氘核弹性散射中被掩盖的3NFs的核相互作用的认识。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

$Measurement of Spin Correlation Coefficient ${\varvec{C}}_{{\varvec{y}},{\varvec{y}}}$ for Proton-$^{{\textbf {3}}}$He Elastic Scattering$

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Measurement of Spin Correlation Coefficient ${\varvec{C}}_{{\varvec{y}},{\varvec{y}}}$ for Proton-$^{{\textbf {3}}}$He Elastic Scattering

We present the measured spin correlation coefficient $C_{y,y}$ for p-$^3$He elastic scattering at 100 MeV at the angles $\theta _\mathrm{c.m.}=46.9^\circ $–$149.2^\circ $ in the center of mass system. The experiment was performed using a 100 MeV polarized proton beam in conjunction with the polarized $^3$He target. Proton beams were injected to the target, and scattered protons were detected by using E-$\Delta E$ detectors which consisted of plastic and NaI(Tl) scintillators. The data are compared with rigorous numerical calculations based on realistic NN potentials as well as with the $\Delta $-isobar excitation . The obtained results indicate that the $C_{y,y}$ expands the knowledge of the nuclear interactions with $\Delta $-isobar or those including 3NFs that are masked in nucleon-deuteron elastic scattering.

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来源期刊

Few-Body Systems 物理-物理：综合

CiteScore

2.90

自引率

18.80%

发文量

审稿时长

6-12 weeks

期刊介绍： The journal Few-Body Systems presents original research work – experimental, theoretical and computational – investigating the behavior of any classical or quantum system consisting of a small number of well-defined constituent structures. The focus is on the research methods, properties, and results characteristic of few-body systems. Examples of few-body systems range from few-quark states, light nuclear and hadronic systems; few-electron atomic systems and small molecules; and specific systems in condensed matter and surface physics (such as quantum dots and highly correlated trapped systems), up to and including large-scale celestial structures. Systems for which an equivalent one-body description is available or can be designed, and large systems for which specific many-body methods are needed are outside the scope of the journal. The journal is devoted to the publication of all aspects of few-body systems research and applications. While concentrating on few-body systems well-suited to rigorous solutions, the journal also encourages interdisciplinary contributions that foster common approaches and insights, introduce and benchmark the use of novel tools (e.g. machine learning) and develop relevant applications (e.g. few-body aspects in quantum technologies).