Production of the most neutron-deficient Zn isotopes by projectile fragmentation of Kr 78

A. Kubiela, H. Suzuki, O. B. Tarasov, M. Pfützner, D. S. Ahn, H. Baba, A. Bezbakh, A. A. Ciemny, W. Dominik, N. Fukuda, A. Giska, R. Grzywacz, Y. Ichikawa, Z. Janas, Janiak, G. Kamiński, K. Kawata, T. Kubo, M. Madurga, C. MazzocchiH. Nishibata, M. Pomorski, Y. Shimizu, N. Sokołowska, D. Suzuki, P. Szymkiewicz, A. Świercz, M. Tajima, A. Takamine, H. Takeda, Y. Takeuchi, C. R. Thornsberry, H. Ueno, H. Yamazaki, R. Yokoyama, K. Yoshida

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4 Citations (Scopus)


The cross sections for the production of three most neutron-deficient zinc isotopes, Zn54-56, in the projectile fragmentation of Kr78 at 345 MeV/nucleon on a beryllium target, were measured. Although the results are smaller by over an order of magnitude from those obtained with a Ni58 beam at 75 MeV/nucleon on a nickel target, the rates of reaction products are found to be larger in the case of high-energy fragmentation of Kr78. The experimental cross sections for the most neutron-deficient isotopes of even-Z nuclei between zinc and krypton were analyzed in the framework of the abrasion-ablation model. A very good agreement with the data was found when the nuclear masses predicted by a particular variant of the Hartree-Fock-Bogoliubov mass model were used. The prospects for the observation of more exotic isotopes in this region are discussed in context of 2p radioactivity.

Original languageEnglish
Article numberA167
JournalPhysical Review C
Issue number6
Publication statusPublished - Dec 2021

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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