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arXiv 2406.02138nucl-th
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中子核的(p,3p)截面的程函计算

Eikonal calculation of (p,3p) cross sections for neutron-rich nuclei

M. Gómez-Ramos

AI总结:

本工作首次提出中能中等质量核与质子靶双质子移除反应(p,3p)的理论描述,采用连续“准自由”碰撞与程函传播形式体系计算截面,发现对$^{12}$C靶预测合理,但对富中子核高估约3倍。

摘要:

据我们所知,本工作首次给出了中能中等质量核与质子靶发生双质子移除反应$(p,3p)$的理论描述,并给出了少两个质子的剩余核不同束缚态的截面。该反应描述假设靶与被移除质子之间发生两次连续的“准自由”碰撞,并考虑了其间的程函传播。该形式体系被应用于$^{12}\mathrm{C}(p,3p)^{10}\mathrm{Be}$、$^{28}\mathrm{Mg}(p,3p)^{26}\mathrm{Ne}$和$^{54}\mathrm{Ca}(p,3p)^{52}\mathrm{Ar}$反应,发现$^{12}$C靶的结果与实验数据吻合较好,而对更富中子的核及$^{54}$Ca的截面高估了约$\sim3$倍,这与使用$^9$Be和$^{12}$C靶的双质子敲出实验结果相似。

英文摘要:

In this work, we present the first, to our knowledge, theoretical description of two-proton removal reactions with proton target $(p,3p)$ for medium-mass nuclei at intermediate energies and present cross sections for the different bound states of the residual nucleus with two fewer protons. The description of the reaction assumes two sequential ``quasifree'' collisions between the target and removed protons and considers eikonal propagation in between. The formalism is applied to the reactions $^{12}\mathrm{C}(p,3p)^{10}\mathrm{Be}$, $^{28}\mathrm{Mg}(p,3p)^{26}\mathrm{Ne}$ and $^{54}\mathrm{Ca}(p,3p)^{52}\mathrm{Ar}$, finding reasonable agreement to experimental data for the $^{12}$C target and an overestimation of a factor $\sim3$ for the more neutron-rich and $^{54}$Ca, which is similar to the results found in two-proton knockout experiments with $^9$Be and $^{12}$C targets.

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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