Halo Effect on Direct Neutron Capture Process
直接中子俘获过程上的光圈效果作者机构：KeyLaboratoryofBeamTechnologyandMaterialModificationofMinistryofEducationBeijingNormalUniversityBeijing100875
出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)
年 卷 期：2004年第21卷第1期
页 面：40-42页
核心收录：
学科分类：08[工学] 0827[工学-核科学与技术] 082701[工学-核能科学与工程]
主 题：Nuclear physics Astrophysics and astroparticles
摘 要：We calculate the capture cross sections of the 10Be(n,γ) 11Be reaction by means of the asymptotic normalization coefficient method and demonstrate the halo effects on the capture cross sections for the direct radiative neutron capture where a p-, s- or d-wave neutron is captured into an s-orbit or p-orbit in 11Be by emitting an E1 γ-ray, respectively. The result shows that the enormous enhancement of the capture cross section is just due to the large overlap of the incident neutron wave with the extended tail of the halo, which is clearly illustrated by the reduced transition amplitude function.
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