Measurement of two-proton correlation from the break-up of 23Al

P. Zhou, D. Q. Fang, Y. G. Ma, X. Z. Cai, J. G. Chen, W. Guo, X. Y. Sun, W. D. Tian, H. W. Wang, G. Q. Zhang, X. G. Cao, Y. Fu, Z. G. Hu, J. S. Wang, M. Wang, Y. Togano, N. Aoi, H. Baba, T. Honda, K. OkadaY. Hara, K. Ieki, Y. Ishibashi, Y. Itou, N. Iwasa, S. Kanno, T. Kawabata, H. Kimura, Y. Kondo, K. Kurita, M. Kurokawa, T. Moriguchi, H. Murakami, H. Oishi, S. Ota, A. Ozawa, H. Sakurai, S. Shimoura, R. Shioda, E. Takeshita, S. Takeuchi, K. Yamada, Y. Yamada, Y. Yasuda, K. Yoneda, T. Motobayashi

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Experiments of 23Al and 22Mg radioactive beams bombarding a 12C target at an energy of 60 ∼70 A MeV have been performed at the projectile fragment separator beamline (RIPS) in the RIKEN Ring Cyclotron Facility to study the two-proton emission from 23Al and 22Mg excited states, respectively. The trajectorie of the decay products, namely 21Na + p + p from 23Al and 20Ne + p + p from 22Mg, are clean identified. The relative momentum and opening angle between two protons in the rest frame of three body decay channels are obtained by relativistic-kinematics reconstruction. The results demonstrate that there are some di-proton emission components from 2He cluster for the excited 23Al and 22Mg.

Original languageEnglish
Pages (from-to)957-964
Number of pages8
JournalInternational Journal of Modern Physics E
Issue number5-6
Publication statusPublished - 2010 Jun


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