Low-energy α+ 6He elastic scattering with the resonating-group method

被引：34
作者：
Fujimura, K [1 ]
Baye, D
Descouvemont, P
Suzuki, Y
Varga, K
机构：
[1] Niigata Univ, Grad Sch Sci & Technol, Niigata 9502181, Japan
[2] Free Univ Brussels, B-1050 Brussels, Belgium
[3] Niigata Univ, Dept Phys, Niigata 9502181, Japan
[4] RIKEN, Wako, Saitama 3510198, Japan
[5] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA
来源：
PHYSICAL REVIEW C | 1999年 / 59卷 / 02期
关键词：
D O I：
10.1103/PhysRevC.59.817
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 alpha + He-6 elastic scattering is investigated within a microscopic multicluster model, involving a realistic description of the He-6 halo nucleus. Phase shifts and elastic-scattering cross sections are calculated up to E-c.m. = 15 MeV with two variants of the resonating-group method. The model gives rise to 1(-) and 3(-) molecular states near E-c.m. = 0.5 MeV and E-c.m. = 3.7 MeV, respectively. We suggest that the broad 3(-) resonance should be observable by comparing elastic cross sections at different energies. We also evaluate the order of magnitude of the He-6 breakup cross section. [S0556-2813(99)03902-3].
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页码：817 / 825
页数：9
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