Two-proton radioactivity: The interesting case of 67kr and further studies

J. Giovinazzo, T. Goigoux, B. Blank, P. Ascher, M. Gerbaux, S. Grévy, T. Kurtukian-Nieto, C. Magron, P. Doornenbal, N. Fukuda, N. Inabe, G. G. Kiss, T. Kubo, S. Kubono, S. Nishimura, H. Sakurai, Y. Shimizu, C. Sidong, P. A. Söderström, T. SumikamaH. Suzuki, H. Takeda, P. Vi, J. Wu, D. S. Ahn, J. Agramunt, A. Algora, V. Guadilla, A. Montaner-Piza, A. I. Morales, S. E.A. Orrigo, B. Rubio, Y. Fujita, M. Tanaka, W. Gelletly, P. Aguilera, F. Molina, F. Diel, D. Lubos, G. De Angelis, D. Napoli, C. Borcea, A. Boso, R. B. Cakirli, E. Ganioglu, J. Chiba, D. Nishimura, H. Oikawa, Y. Takei, S. Yagi, K. Wimmer, G. De France, S. Go, B. A. Brown

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

We report on the observation of 67Kr that has been produced in an experiment performed at the RIKEN/BigRIPS facility. The two-proton decay of 67Kr has been evidenced and this nucleus is thus the fourth observed long lived ground-state two-proton emitter, after 45Fe, 48Ni and 54Zn. In addition, the decay of several isotopes in the mass region has been investigated. While for previous cases of two-proton radioactivity, the theoretical models could reproduce the measured data, this is not the case anymore for 67Kr. Two interpretations have been proposed to explain this discrepancy: A transition between real two-proton and sequential decay or the influence of deformation. These hypotheses will be tested in future experiments by measuring the angular and energy correlations of the emitted protons.

本文言語英語
ページ(範囲)577-585
ページ数9
ジャーナルActa Physica Polonica B
51
3
DOI
出版ステータス出版済み - 2020
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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