Nd→3Hγ with effective field theory

被引：47
|
作者：
Sadeghi, H [1 ]
Bayegan, S [1 ]
机构：
[1] Univ Tehran, Dept Phys, Tehran, Iran
来源：
NUCLEAR PHYSICS A | 2005年 / 753卷 / 3-4期
关键词：
effective field theory; three-body system; three-body force; Faddeev equation; radiative capture;
D O I：
10.1016/j.nuclphysa.2005.03.004
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 cross section of neutron-deuteron radiative capture nd -> H-3 gamma is calculated at energies relevant to big-bang nucleosynthesis (20 <= E <= 200 keV) with pionless effective field theory. At these energies, magnetic transition M1 gives the dominant contribution. The M1 amplitude is calculated up to next-to-next-to leading order ((NLO)-L-2) with insertion of three-body force. Results are in good agreement within few percent theoretical uncertainty in comparison with available calculated data below E = 200 keV. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：291 / 304
页数：14
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