Nuclear Astrophysical Reaction Studies Using Heavy Ion Storage Rings
Nuclear Astrophysical Reaction Studies Using Heavy Ion Storage Rings
复制标题
使用重离子存储环进行核天体物理反应研究
DOI：
10.1080/10619127.2023.2230852
复制
发表时间：
2023
影响因子：
--
通讯作者：
Bruno C
中科院分区：
文献类型：
--
作者：
Bruno C
核天体物理学是一个令人着迷的领域，需要探索核反应和对于元素起源和恒星生命周期的基本问题至关重要的性质。进行此类测量是一项非常具有挑战性的实验工作，特别是当这些反应和性质涉及不稳定的原子核时。这些核在炎热的恒星环境中发挥着关键作用，例如双星系统中反复发生的新星爆炸，或灾难性的超新星和中子星合并。自威利·福勒 (Willy Fowler) 在 1984 年诺贝尔奖演讲中呼吁此类研究以来，尽管几十年来取得了重大进展，但令人沮丧的是，许多重大难题仍未得到解决。这通常是由于我们无法准确确定涉及爆炸燃烧天体物理能量范围内的放射性束物质的关键反应速率（通常~ 1-10 MeV/u）。光度和光束强度方面出现了严峻的挑战，而且光束质量以及光束和目标纯度方面也出现了严峻的挑战。需要开发适当的新技术和检测系统。重离子存储环为应对这些挑战提供了新的舞台。重离子环已被广泛用于研究奇异核的性质。这些研究是由重离子研究协会（GSI；德国）的实验存储环（ESR）开创的。一个关键的发现是首次观察到束缚态β衰变的例子[1]。还在 ESR 上进行了类氢离子中的电子捕获衰变、质量测量以及外来原子核的长寿命异构态识别的研究 [2]。目前，中国兰州重离子储存环设施 [3] 和日本理化学研究所的稀有 RI 环设施 [4] 也在进行质量测量项目。
Nuclear astrophysics is a fascinating field requiring exploration of nuclear reactions and properties of key importance for fundamental questions on the origin of the elements and the life cycle of stars. Performing such measurements represents a very challenging experimental endeavor, particularly when these reactions and properties involve unstable nuclei. These nuclei play a key role in hot stellar environments such as recurrent nova explosions taking place in binary systems, or cataclysmic supernovae and neutron star mergers. While significant progress was made over the decades since the rallying cry of Willy Fowler for such studies in his Nobel lecture of 1984, many stellar puzzles remain frustratingly unsolved. This is often due to our inability to determine accurately key reaction rates involving radioactive beam species in the astrophysical energy range for explosive burning (typically~ 1-10 MeV/u). Daunting challenges arise in terms of luminosity and beam intensity, but also in terms of beam quality and beam and target purity. Development of appropriate new techniques and detection systems is required. Heavy ion storage rings offer a new arena to address these challenges. Heavy ion rings have already been used extensively to study properties of exotic nuclei. These studies were pioneered at the Experimental Storage Ring (ESR) at the Society for Heavy Ion Research (GSI; Germany). A key discovery was the first observation of examples of boundstate beta-decay [1]. Studies of electron capture decay in hydrogen-like ions, mass measurements, and identification of long-lived isomeric states of exotic nuclei were also performed on the ESR [2]. Mass measurement programs are also presently being conducted at the heavy ion storage ring facilities, CSRe, Lanzhou, China [3] and the Rare RI-Ring, RIKEN, Japan [4].
DOI：
10.1088/1742-6596/1668/1/012019
发表时间：
2020
期刊：
Journal of Physics: Conference Series
影响因子：
--
作者：
A. Henriques;B. Jurado;M. Grieser;D. Denis;T. Chiron;L. Gaudefroy;J. Glorius;C. Langer;Y. Litvinov;L. Mathieu;V. Méot;R. Pérez;J. Pibernat;R. Reifarth;O. Roig;B. Thomas;B. Thomas;J. Thomas;I. Tsekhanovich
通讯作者：
I. Tsekhanovich
DOI：
10.1088/1742-6596/1668/1/012046
发表时间：
2020
期刊：
Conference Series
影响因子：
--
作者：
Varga L
通讯作者：
Varga L