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arXiv 1306.2706nucl-thnucl-ex
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氘核剥离振幅温伯格展开的快速收敛

Rapid convergence of the Weinberg expansion of the deuteron stripping amplitude

D. Y. Pang, N. K. Timofeyuk, R. C. Johnson, J. A. Tostevin

摘要:

$(d,p)$反应的理论经常使用基于由总三体散射波函数的分量支配的跃迁振幅的形式,其中入射中子和质子之间的空间分离由$n$ - $p$相互作用$V_{np}$的范围限制。通过与CDCC方法的计算结果的比较,我们发现在完整的Weinberg态集合中,$(d,p)$跃迁振幅主要由三体波函数展开式的第一项决定.我们使用\nuc{132}{Sn}(d,p)\nuc{133} {Sn}反应在30和100 MeV的当代利益的例子。这种观察到的优势和它对未来理论发展的影响的一般性进行了讨论。

英文摘要:

Theories of $(d,p)$ reactions frequently use a formalism based on a transition amplitude that is dominated by the components of the total three-body scattering wave function where the spatial separation between the incoming neutron and proton is confined by the range of the $n$-$p$ interaction, $V_{np}$. By comparison with calculations based on the CDCC method we show that the $(d,p)$ transition amplitude is dominated by the first term of the expansion of the three-body wave function in a complete set of Weinberg states. We use the \nuc{132}{Sn}(d,p)\nuc{133} {Sn} reaction at 30 and 100 MeV as examples of contemporary interest. The generality of this observed dominance and its implications for future theoretical developments are discussed.

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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