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arXiv 1509.09009nucl-th
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轻核反应的从头计算

Ab initio calculations of reactions with light nuclei

S. Quaglioni, G. Hupin, A. Calci, P. Navratil, R. Roth

摘要:

{ \em ab initio}(即,从第一性原理)理论框架能够提供轻核的结构和低能反应性质的统一描述,这对于进一步理解核子之间的基本相互作用,并为核天体物理、聚变能量研究和其它应用提供关键反应速率的精确预测是期望的。本文回顾了在{ \em ab initio}无核壳模型连续介质框架下,从手征二体和三体哈密顿量出发,对核子和氘在轻核上散射的{\em ab initio}计算.这是一个统一的核束缚态和散射态的方法,其中的$A$ -核子系统的平方可积能量本征态耦合到$(A-a)+a$靶加弹波函数的精神,共振群方法,以获得一个有效的描述多体核动力学在短,中距离和长距离。

英文摘要:

An {\em ab initio} (i.e., from first principles) theoretical framework capable of providing a unified description of the structure and low-energy reaction properties of light nuclei is desirable to further our understanding of the fundamental interactions among nucleons, and provide accurate predictions of crucial reaction rates for nuclear astrophysics, fusion-energy research, and other applications. In this contribution we review {\em ab initio} calculations for nucleon and deuterium scattering on light nuclei starting from chiral two- and three-body Hamiltonians, obtained within the framework of the {\em ab initio} no-core shell model with continuum. This is a unified approach to nuclear bound and scattering states, in which square-integrable energy eigenstates of the $A$-nucleon system are coupled to $(A-a)+a$ target-plus-projectile wave functions in the spirit of the resonating group method to obtain an efficient description of the many-body nuclear dynamics both at short and medium distances and at long ranges.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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