Direct and resonant breakup of 6He on 269Bi near the Coulomb barrier.

被引：0
|
作者：
Kolata, J. J. [1 ]
机构：
[1] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA
来源：
REVISTA MEXICANA DE FISICA | 2007年 / 53卷 / 06期
基金：
美国国家科学基金会;
关键词：
Two neutron halo; breakup channels;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
As part of a program to study reactions induced by the two-neutron halo nucleus He-6 on high-Z targets, a neutron-a-particle coincidence experiment was performed for He-6 incident on a Bi-209 target at an energy just above the Coulomb barrier. The experimental setup was optimized for the measurement of projectile breakup. Direct breakup, as well as breakup through the 2(+) excited state of He-6 and also the He-5+n channel, could be distinguished. The total breakup cross section measured in this work compares well with a continuum-discretized coupled-channels calculation that assumes a 50% reduction in the B(E1) computed from a pure He-4+2n cluster configuration. The B(E2 double up arrow) for Coulomb excitation of the (2)+ state in He-6 was also determined.
引用
收藏
页码：54 / 58
页数：5
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