Production of neutron-rich nuclei in the vicinity of 78Ni: Fragmentation reactions of unstable 81Ga and 82Ge beams
The fragmentation reactions of neutron-rich unstable nuclei 81 Ga and 82 Ge at 250 MeV/nucleon have been studied in order to search the optimal mean for the production of very neutron-rich nuclei in the vicinity of 78 Ni. The newly measured cross sections were compared with various calculations, showing a good agreement with EPAX3.01. The present work provides experimental insights into the two-step scheme—fragmentation following fission—as a method to produce very neutron-rich nuclei through a combination of ISOL and fragmentation of post-accelerated beams of unstable nuclei. Our results enable an evaluation of the potential of the two-step scheme in the production of very neutron-rich nuclei for the 78 Ni region. The two-step scheme using fragmentation of a post-accelerated 81 Ga beam could be an option to produce neutron-rich nuclei around 78 Ni when the 81 Ga beam intensity reaches 1.0 × 10 8 pps, compared to the one-step scheme with fission of 238 U.
Authors
- Hongna Liu (ORCID: https://orcid.org/0000-0002-5881-8353)
- P. Bednarczyk (ORCID: https://orcid.org/0000-0002-5699-5292)
- E. Ideguchi
- Z. Yang (ORCID: https://orcid.org/0009-0007-3128-026X)
- Yanlin Ye (ORCID: https://orcid.org/0000-0001-8938-9152)
- Y. L. Sun (ORCID: https://orcid.org/0000-0003-3202-7032)
- Y. P. Shen (ORCID: https://orcid.org/0000-0003-4124-6034)
- R. Yokoyama
- D. Nishimura
- Weiping Liu (ORCID: https://orcid.org/0000-0003-3233-8260)
- N. Aoi
- M. Matsushita (ORCID: https://orcid.org/0000-0001-7573-5632)
- T. Motobayashi (ORCID: https://orcid.org/0000-0002-7661-3941)
- T. Yamamoto (ORCID: https://orcid.org/0000-0002-1132-9763)
- A. Tamii (ORCID: https://orcid.org/0000-0003-4888-9593)
- H. Baba
- D. Steppenbeck
- H. Wang (ORCID: https://orcid.org/0000-0002-0161-8879)
- H. Sakurai
- R. Tanaka (ORCID: https://orcid.org/0009-0001-5013-0028)
- Kazuya Kobayashi (ORCID: https://orcid.org/0000-0003-2847-9423)
- J. Lee
- P. Doornenbal (ORCID: https://orcid.org/0000-0001-7530-4066)
- X. F. Yang
- R. Minakata
- Y. Kondo (ORCID: https://orcid.org/0000-0002-6353-2114)
- Takashi Hashimoto (ORCID: https://orcid.org/0000-0001-6779-5598)
- X. Sun (ORCID: https://orcid.org/0000-0003-2070-9562)
- Zhuang Tian (ORCID: https://orcid.org/0000-0002-5689-714X)
- D. Sohler
- J. Zenihiro
- Zs. Fülöp
- H. Otsu
- Zs. Dombrádi
- Yoshinori Shiga
- S. Go
- Jen-Chung Lou
- K. Yoneda
- S. Takeuchi
- Zs. Vajta
Institutions
- Tokyo Institute of Technology (JP)
- Rikkyo University (JP)
- Chinese Academy of Sciences (CN)
- HUN-REN Institute for Nuclear Research (HU)
- Peking University (CN)
- Beijing Normal University (CN)
- Huzhou Normal University (CN)
- Southern University of Science and Technology (CN)
- Institute of Nuclear Physics, Polish Academy of Sciences (PL)
- Nippon Soken (Japan) (JP)
- RIKEN (JP)
- Institute of Modern Physics (CN)
- RIKEN Nishina Center (JP)
- State Key Laboratory of Nuclear Physics and Technology
- University of Hong Kong (HK)
- The University of Osaka (JP)
Publication Details
- Journal
- Physics Letters B
- Published
- 2024-10-18
- DOI
- https://doi.org/10.1016/j.physletb.2024.139081
- Citations
- 4
- Primary Topic
- Nuclear physics research studies
- Type
- article
- Field-Weighted Citation Impact
- 2.64
Funders
- National Natural Science Foundation of China
- Nemzeti Kutatási és Technológiai Hivatal
- Natural Science Foundation of Zhejiang Province