ONOKORO project: Comprehensive research of cluster formation in medium-heavy and heavy nuclei

IF 1.7 4区物理与天体物理 Q2 PHYSICS, NUCLEAR

Nuclear Physics A Pub Date : 2025-04-23 DOI:10.1016/j.nuclphysa.2025.123123

Yuki Kubota , Kodjo Agbekponou , DeukSoon Ahn , Hidetada Baba , Koshi Higuchi , Yuto Hijikata , Sunji Kim , Yosuke Kondo , Shumpei Koyama , Kazuki Kyo , Kenjiro Miki , Tomoya Nakada , Shingo Ogio , Thomas Pohl , Taiki Sugiyama , Shoko Takeshige , Junki Tanaka , Ryotaro Tsuji , Ren Urayama , Kanta Yahiro , Tomohiro Uesaka

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引用次数: 0

Abstract

Nuclear clustering is a topic with a rich historical background that is receiving renewed attention. It has been established for light nuclei and in α decay nuclei. However, very little is known about clustering in medium-heavy and heavy nuclei. The ONOKORO project, initiated in 2021 with KAKENHI funding from JSPS, aims to conduct a systematic study of nuclear clustering over a wide mass range by combining the capabilities of three facilities: RCNP, RIBF, and HIMAC, utilizing the cluster knockout reaction at intermediate energy. The construction of the TOGAXSI telescope for inverse kinematics measurements is underway. The TOGAXSI telescope, combining Si trackers and GAGG(Ce) calorimeters, has completed its basic development with beams at HIMAC and is currently under construction at RIBF. The first comprehensive cluster knockout measurements for the stable nuclei ^40,42,44,48Ca together with ^6,7Li have been conducted at RCNP. The separation energy spectra for deuteron, triton, ³He, and α clusters have been successfully obtained. The complemental measurements for the unstable nuclei

^{50 – 52}

Ca are planned in 2025 at RIBF.

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ONOKORO项目：中、重核团簇形成的综合研究

核集群是一个具有丰富历史背景的课题，目前正受到人们的重新关注。它已在轻核和α衰变核中建立。然而，对于中重核和重核的聚类，我们所知甚少。ONOKORO项目于2021年由JSPS的KAKENHI资助启动，旨在通过结合三个设施的能力：RCNP， RIBF和HIMAC，利用中间能量的簇敲除反应，在大质量范围内对核集群进行系统研究。用于逆运动学测量的TOGAXSI望远镜正在建造中。TOGAXSI望远镜，结合了Si跟踪器和GAGG（Ce）量热计，已经在HIMAC完成了它的基本开发，目前正在RIBF建设中。在RCNP对稳定核40,42,44,48ca和6,7li进行了首次全面的簇敲除测量。成功地获得了氘核、triton、3He和α簇的分离能谱。不稳定核50-52Ca的补充测量计划于2025年在RIBF进行。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Physics A 物理-物理：核物理

CiteScore

3.60

自引率

7.10%

发文量

113

审稿时长

61 days

期刊介绍： Nuclear Physics A focuses on the domain of nuclear and hadronic physics and includes the following subsections: Nuclear Structure and Dynamics; Intermediate and High Energy Heavy Ion Physics; Hadronic Physics; Electromagnetic and Weak Interactions; Nuclear Astrophysics. The emphasis is on original research papers. A number of carefully selected and reviewed conference proceedings are published as an integral part of the journal.