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Shedding light on nuclear aspects of neutrinoless double beta decay by heavy-ion double charge exchange reactions
Progress in Particle and Nuclear Physics ( IF 14.5 ) Pub Date : 2022-10-28 , DOI: 10.1016/j.ppnp.2022.103999
F. Cappuzzello , H. Lenske , M. Cavallaro , C. Agodi , N. Auerbach , J.I. Bellone , R. Bijker , S. Burrello , S. Calabrese , D. Carbone , M. Colonna , G. De Gregorio , J.L. Ferreira , D. Gambacurta , H. García-Tecocoatzi , A. Gargano , J.A. Lay , R. Linares , J. Lubian , E. Santopinto , O. Sgouros , V. Soukeras , A. Spatafora

We review the status and prospects of heavy-ion double charge exchange (HI-DCE) reactions. Their important role for nuclear reaction, nuclear structure and double beta-decay investigations is outlined. From the experimental side the characteristically tiny cross sections for these processes and the high background generated by other more probable competing reactions is the main challenge, which has hindered HI-DCE spectroscopy until recent years. Modern magnetic spectrometers have proven to possess the right requisites to overcome past limitations, fostering the present and future development of the field. From the theory side, the description of the measured HI-DCE cross sections poses manifold challenges. Dealing with processes which involve composite nuclei, HI-DCE reactions can, in principle, proceed through several alternative paths. These, in turn, correspond to different reaction mechanisms probing competing aspects of nuclear structure, from mean field to various classes of nucleon–nucleon interactions and correlations. A powerful way to scrutinize the nuclear response to HI-DCE is to consistently link it to the information extracted from the competing direct reactions. Indeed, these complementary studies are mandatory in order to minimize the systematic errors in the data analyses and build a many-facets and parameter-free representation of the systems under study.



中文翻译:

通过重离子双电荷交换反应阐明无中微子双β衰变的核方面

我们回顾了重离子双电荷交换 (HI-DCE) 反应的现状和前景。概述了它们在核反应、核结构和双 β 衰变研究中的重要作用。从实验方面来看,这些过程特有的微​​小横截面和其他更可能的竞争反应产生的高背景是主要挑战,直到最近几年,这一直阻碍着 HI-DCE 光谱学。事实证明,现代磁谱仪具备克服过去局限性的正确要求,促进该领域当前和未来的发展。从理论的角度来看,测量的 HI-DCE 横截面的描述提出了多方面的挑战。在处理涉及复合核的过程时,HI-DCE 反应原则上可以通过多种替代途径进行。论文,反过来,对应于探测核结构竞争方面的不同反应机制,从平均场到各种类型的核子-核子相互作用和相关性。仔细检查对 HI-DCE 的核反应的一种有效方法是始终将其与从竞争直接反应中提取的信息联系起来。事实上,这些补充研究是强制性的,以便最大限度地减少数据分析中的系统错误,并建立所研究系统的多方面和无参数表示。仔细检查对 HI-DCE 的核反应的一种有效方法是始终将其与从竞争直接反应中提取的信息联系起来。事实上,这些补充研究是强制性的,以便最大限度地减少数据分析中的系统错误,并建立所研究系统的多方面和无参数表示。仔细检查对 HI-DCE 的核反应的一种有效方法是始终将其与从竞争直接反应中提取的信息联系起来。事实上,这些补充研究是强制性的,以便最大限度地减少数据分析中的系统错误,并建立所研究系统的多方面和无参数表示。

更新日期:2022-10-28
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