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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Unified ab initio approaches to nuclear structure and reactions
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Unified ab initio approaches to nuclear structure and reactions

机译：核结构和反应的统一从头算方法

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摘要

The description of nuclei starting from the constituent nucleons and the realistic interactions among them has been a long-standing goal in nuclear physics. In addition to the complex nature of the nuclear forces, with two-, three-and possibly higher many-nucleon components, one faces the quantum-mechanical many-nucleon problem governed by an interplay between bound and continuum states. In recent years, significant progress has been made in ab initio nuclear structure and reaction calculations based on input from QCD-employing Hamiltonians constructed within chiral effective field theory. After a brief overview of the field, we focus on ab initio many-body approaches-built upon the no-core shell model-that are capable of simultaneously describing both bound and scattering nuclear states, and present results for resonances in light nuclei, reactions important for astrophysics and fusion research. In particular, we review recent calculations of resonances in the He-6 halo nucleus, of five-and six-nucleon scattering, and an investigation of the role of chiral three-nucleon interactions in the structure of Be-9. Further, we discuss applications to the Be-7 (p, gamma)B-8 radiative capture. Finally, we highlight our efforts to describe transfer reactions including the H-3(d, n)He-4 fusion.
机译：从组成核子开始的核描述及其之间的实际相互作用一直是核物理的长期目标。除了具有两个，三个，甚至可能更高的多核子分量的核力量的复杂性质外，一个人还面临着由束缚态和连续态之间的相互作用控制的量子力学多核子问题。近年来，基于手性有效场理论中构造的汉密尔顿人的QCD的输入，从头算核结构和反应计算取得了重大进展。在对该领域进行了简要概述之后，我们将重点关注从无核壳模型构建的从头开始的多体方法，该方法能够同时描述束缚态和散射核态，并给出光核共振，反应的结果。对于天体物理学和聚变研究非常重要。特别是，我们审查了He-6晕原子核，五和六核子散射的共振的最新计算，以及手性三核子相互作用在Be-9结构中的作用的研究。此外，我们讨论了Be-7（p，γ）B-8辐射捕获的应用。最后，我们着重介绍我们描述H-3（d，n）He-4融合反应的努力。

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