Parametrization of low-energy cross sections for nonresonant neutron capture

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	Parametrization of low-energy cross sections for nonresonant neutron capture
	Wang, CB(王呈斌） ; Cisse, OI ; Baye, D
刊名	PHYSICAL REVIEW C
	2009
卷号	80 期号:3 页码:7
ISSN号	0556-2813
通讯作者	Wang, CB (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
英文摘要	The nonresonant component of radiative neutron capture reactions is parametrized at low energies by a polynomial of second degree. The potential model is first used to reproduce experimental data below 1 MeV with the help of spectroscopic factors. The fits are found sensitive to the scattering length of the initial s or p waves. The coefficients of a Taylor expansion are then calculated by resolution of the Schrodinger equation and its energy derivatives at energy zero. Such theory-guided parametrizations are derived for neutron capture by (7)Li, (12)C, (14)C, (16)O, and (18)O. When the capture proceeds from the s wave to a weakly bound state, a Pade-like parametrization better approximates the potential-model results.
学科主题	Physics
收录类别	SCI
语种	英语
WOS记录号	WOS:000270383600054
公开日期	2012-04-11
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/7003]
专题	上海应用物理研究所_中科院上海应用物理研究所2004-2010年
推荐引用方式 GB/T 7714	Wang, CB,Cisse, OI,Baye, D. Parametrization of low-energy cross sections for nonresonant neutron capture[J]. PHYSICAL REVIEW C,2009,80(3):7.
APA	Wang, CB,Cisse, OI,&Baye, D.(2009).Parametrization of low-energy cross sections for nonresonant neutron capture.PHYSICAL REVIEW C,80(3),7.
MLA	Wang, CB,et al."Parametrization of low-energy cross sections for nonresonant neutron capture".PHYSICAL REVIEW C 80.3(2009):7.