Nd -> H-3 gamma with effective field theory

Sadeghi H; Bayegan S

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Nd -> H-3 gamma with effective field theory

机译：Nd-> H-3伽玛与有效场论

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The cross section of neutron-deuteron radiative capture nd &RARR; H-3γ is calculated at energies relevant to big-bang nucleosynthesis (20 &LE; E &LE; 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. © 2005 Elsevier B.V. All rights reserved.

机译：中子-氘核辐射俘获截面＆RARR; H-3γ是利用无扰动有效场理论在与大爆炸核合成相关的能量（20＆LE; E＆LE; 200 keV）下计算的。在这些能量下，磁跃迁M1占主导地位。通过插入三体力，可以计算出M1振幅，直到最接近的前导阶数（（NLO）-L-2）。与低于E = 200 keV的可用计算数据相比，结果在百分之几的理论不确定性范围内完全吻合。＆复制; 2005 Elsevier B.V.保留所有权利。

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《Nuclear Physics, A: Journal Devoted to the Experimental Study of the Fundamental Constituents of Matter and Their Actions》 |2005年第4期|共14页
作者
Sadeghi H; Bayegan S;
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正文语种 eng
中图分类原子核物理学、高能物理学;
关键词
effective field theory; three-body system; three-body force; Faddeev equation; radiative capture; NEUTRON-DEUTERON SCATTERING; SHORT-RANGE INTERACTIONS; RADIATIVE-CAPTURE; 3-BODY SYSTEM; ENERGY; TRITON;

机译：有效场论;三体系统;三体力;Faddeev方程;辐射俘获;中子-氘弹散射;短程相互作用;辐射捕获;三体系统;能量;TRITON;

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Nd -> H-3 gamma with effective field theory

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