arXiv 1802.050092018-02-14nucl-ex

直接反应中的三体关联：$(p,n)$反应中填充的$^{6}$实例

Three-body correlations in direct reactions: Example of $^{6}$Be populated in $(p,n)$ reaction

V. Chudoba, L. V. Grigorenko, A. S. Fomichev, A. A. Bezbakh, I. A. Egorova, S. N. Ershov, M. S. Golovkov, A. V. Gorshkov, V. A. Gorshkov, G. Kaminski, S. A. Kru… 展开作者

V. Chudoba, L. V. Grigorenko, A. S. Fomichev, A. A. Bezbakh, I. A. Egorova, S. N. Ershov, M. S. Golovkov, A. V. Gorshkov, V. A. Gorshkov, G. Kaminski, S. A. Krupko, I. Mukha, E. Yu. Nikolskii, Yu. L. Parfenova, S. I. Sidorchuk, P. G. Sharov, R. S. Slepnev, L. Standylo, S. V. Stepantsov, G. M. Ter-Akopian, R. Wolski, M. V. Zhukov

备注：: submitted to Physical Review C
发表信息：: Phys. Rev. C 98, 054612 (2018)
DOI：: 10.1103/PhysRevC.98.054612

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摘要：

在电荷交换反应$^1$ H（$^{6}$ Li，$^{6}$ Be）$n$中填充$^{6}$ Be连续态，收集了关于三体$α$ + $p$ + $p$关联的非常高的统计数据（$\sim 5 \times 10^6$事件）。被认为是低于$\sim 3$兆电子伏的$^{6}$被激发能区，其中的数据是占主导地位的贡献从$0^+$和$2^+$状态。它演示了如何高统计少体相关数据可以用来提取详细的信息的反应机制。这样的推导是基于这样的事实，即高度自旋对准的状态通常在直接反应中填充。

英文摘要：

The $^{6}$Be continuum states were populated in the charge-exchange reaction $^1$H($^{6}$Li,$^{6}$Be)$n$ collecting very high statistics data ($\sim 5 \times 10^6$ events) on the three-body $α$+$p$+$p$ correlations. The $^{6}$Be excitation energy region below $\sim 3$ MeV is considered, where the data are dominated by contributions from the $0^+$ and $2^+$ states. It is demonstrated how the high-statistics few-body correlation data can be used to extract detailed information on the reaction mechanism. Such a derivation is based on the fact that highly spin-aligned states are typically populated in the direct reactions.

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