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arXiv 2103.14271nucl-exnucl-th
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中能质子- $\rm ^3He$弹性散射

Proton-$\rm ^3He$ elastic scattering at intermediate energies

A. Watanabe, S. Nakai, Y. Wada, K. Sekiguchi, A. Deltuva, T. Akieda, D. Etoh, M. Inoue, Y. Inoue, K. Kawahara, H. Kon, K. Miki, T. Mukai, D. Sakai, S. Shibuya, … 展开作者

A. Watanabe, S. Nakai, Y. Wada, K. Sekiguchi, A. Deltuva, T. Akieda, D. Etoh, M. Inoue, Y. Inoue, K. Kawahara, H. Kon, K. Miki, T. Mukai, D. Sakai, S. Shibuya, Y. Shiokawa, T. Taguchi, H. Umetsu, Y. Utsuki, M. Watanabe, S. Goto, K. Hatanaka, Y. Hirai, T. Ino, D. Inomoto, A. Inoue, S. Ishikawa, M. Itoh, H. Kanda, H. Kasahara, N. Kobayashi, Y. Maeda, S. Mitsumoto, S. Nakamura, K. Nonaka, H. J. Ong, H. Oshiro, Y. Otake, H. Sakai, A. Taketani, A. Tamii, D. T. Tran, T. Wakasa, Y. Wakabayashi, T. Wakui

摘要:

我们提出了一个精确的测量截面,质子和$\rm ^3He$分析能力,和自旋相关系数$C_{y,y}$的$p$ - $\rm ^3He$弹性散射65 MeV附近,并与严格的四核子散射计算的基础上现实的核势和模型与$Δ$ -同量异位素激发的比较。在截面最小值附近的区域中,在一些测量的可观测值中可以看到明显的差异。使用计算的横截面和$\rm ^3 He$结合能之间的标度关系的理论预测是不成功的复制数据。计算的截面对$NN$势的灵敏度很高,而对$Δ$的等压线效应很小,这是不同于氘-质子弹性散射的特征。上述结果表明,中能$p$ - $\rm ^3He$散射是研究三核子散射所不能达到的核相互作用的极好工具。

英文摘要:

We present a precise measurement of the cross section, proton and $\rm ^3He$ analyzing powers, and spin correlation coefficient $C_{y,y}$ for $p$-$\rm ^3He$ elastic scattering near 65 MeV, and a comparison with rigorous four-nucleon scattering calculations based on realistic nuclear potentials and a model with $Δ$-isobar excitation. Clear discrepancies are seen in some of the measured observables in the regime around the cross section minimum. Theoretical predictions using scaling relations between the calculated cross section and the $\rm ^3 He$ binding energy are not successful in reproducing the data. Large sensitivity to the $NN$ potentials and rather small $Δ$-isobar effects in the calculated cross section are noticed as different features from those in the deuteron-proton elastic scattering. The results obtained above indicate that $p$-$\rm ^3He$ scattering at intermediate energies is an excellent tool to explore nuclear interactions not accessible by three-nucleon scattering.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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