α-particle optical potential tests below the Coulomb barrier

被引：18

作者：

Avrigeanu, M. ^{[1
]}

Avrigeanu, V. ^{[1
]}

机构：

[1] Horia Hulubei Natl Inst Phys & Nucl Engn, POB MG-6, Bucharest, Romania

来源：

PHYSICAL REVIEW C | 2009年 / 79卷 / 02期

关键词：

MODEL POTENTIALS; CAPTURE; LESS;

D O I：

10.1103/PhysRevC.79.027601

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The results of two recent papers concerning (alpha,gamma) and (alpha,n) reaction cross sections close to the reaction thresholds are discussed with regard to predictions of a recent alpha-particle regional optical potential. It is found that the new measured cross sections are rather well described especially for the dominant reaction channels. Particular features of the alpha-particle optical potential at energies below the Coulomb barrier explain the failure of a former regional potential obtained by analysis of alpha-particle elastic scattering alone at higher energies. Additional limitations of statistical model calculations for minor reaction channels are also discussed.

引用

页数：4

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