Active target MAIKo to investigate cluster structures in unstable nuclei

11th International Conference on Clustering Aspects of Nuclear Structure and Dynamics

Furuno, T.^1 ; Kawabata, T.^1 ; Murata, M.^1 ; Adachi, S.^2 ; Ayyad, Y.^3 ; Baba, H.^4 ; Baba, T.^1 ; Cavallaro, M.^5 ; Hashimoto, T.^6 ; Ishii, Y.^1 ; Kobayakawa, R.^1 ; Matsuda, Y.^7 ; Matsuoka, Y.^1 ; Morimoto, T.^1 ; Nanamura, T.^1 ; Beceilo-Novo, S.^3 ; Ong, H.J.^2 ; Sakaue, A.^1 ; Tanaka, J.^2,8 ; Tanihata, I.^2 ; Trong, D.T.^2 ; Tsumura, M.^1 ; Watanabe, H.D.^1

Department of Physics, Kyoto University, Kyoto

606-8502, Japan^1

Research Center for Nuclear Physics, Osaka University, Osaka

567-0047, Japan^2

National Superconducting Cyclotron Laboratory, Michigan State University, MI

48824, United States^3

RIKEN Nishina Center, Saitama

351-0198, Japan^4

INFN Laboratori Nazionali Del Sud, Catania

95125, Italy^5

Rare Isotope Science Project, Institute for Basic Science, Daejeon

305-811, Korea, Republic of^6

Cyclotron and Radioisotope Center, Tohoku University, Miyagi

980-8578, Japan^7

Faculty of Science and Engineering, Konan University, Hyogo

658-8501, Japan^8

关键词: Active targets;    Cluster structure;    Low-energy particles;    Mass spectroscopy;    Mirror systems;    Particle decay;    RI-beam;    Unstable nuclei;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/863/1/012076/pdf
DOI  :  10.1088/1742-6596/863/1/012076

来源: IOP

【 摘 要 】

Study on clustering of nucleons in nuclei is recently focusing on unstable nuclei where new kinds of structures, namely molecular structures with excess nucleons, are predicted. The Coulomb shift of energy in the mirror system is suggested to reflect the size of these structures. Although the missing mass spectroscopy is expected to give access to these structures even beyond particle decay thresholds without any biases in excitation energy spectra but the detection of very low energy particles is challenging. To satisfy the requirement, a new active target system MAIKo has been developed at RCNP. The detector was commissioned using a13C beam under the same kinematical condition as that of RI beam experiments.