Quasifree processes in the Li-6 breakup reactions by alpha particles

被引：3
作者：
Okihana, A
Ushiro, K
Yoshimura, T
Kakigi, S
Sekioka, T
机构：
[1] KYOTO UNIV,INST CHEM RES,UJI,KYOTO 611,JAPAN
[2] HIMEJI INST TECHNOL,HIMEJI,HYOGO 67122,JAPAN
来源：
NUCLEAR PHYSICS A | 1997年 / 614卷 / 01期
关键词：
Li-6((alpha; 2; alpha); Li-6(alpha; (HeHe)-He-3-He-5); E = 118.4 MeV; measured sigma(theta(alpha 1); theta(alpha; 2); E(alpha; 1)); sigma(theta(3He); theta(alpha); E(3He); E(alpha)); Li-6 deduced d alpha spectroscopic factor; projected energy spectrum; quasifree scattering; quasifree reaction; distorted wave impulse approximation;
D O I：
10.1016/S0375-9474(96)00452-6
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 differential cross sections for the Li-6(alpha, 2 alpha)H-2 and the Li-6(alpha,(HeHe)-He-3-He-5)H-2 reactions have been measured at the bombarding energy of 118.4 MeV. For both reactions, enhanced quasifree peaks were observed. The angular dependences of the two-body cross sections, deduced from the three-body cross sections by using DWIA, were compared with the free cross sections. For the Li-6(alpha, 2 alpha)H-2 reaction, the angular dependence for the quasifree scattering was similar to that for the free elastic scattering and the absolute cross sections were explained with a reasonable alpha d cluster probability in Li-6. So the quasifree scattering process seems consistent with the free scattering. For the Li-6(alpha,(HeHe)-He-3-He-5)H-2 reaction, the angular dependence for the quasifree reaction process agreed with that for the free reaction; however, the absolute cross sections were about twice as large as those for the free reactions, This might be due to three-body structure effects in Li-6.
引用
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页码：71 / 85
页数：15
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