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Abstract |
We present the discovery of a new isotope of 98Sn beyond the double-magic N = Z = 50 nucleus 100Sn. 98Sn was identified among the projectile-fragmentation products of a 124Xe beam at 345 MeV/nucleon at the RI Beam Factory, RIKEN, Japan. Additionally, we have confirmed the production of 96In and 94Cd, previously reported as new isotopes at RIKEN. These highly proton-rich nuclei were separated and identified using the large-acceptance two-stage separator BigRIPS. Furthermore, we have determined the cross sections of 98Sn and its neighboring nuclei. These experimental values were compared to the semi-empirical cross-section formula EPAX3.1a, resulting in a reduction of the predicted cross sections by roughly a factor of 5. |
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Address |
[Suzuki, H.; Fukuda, N.; Takeda, H.; Shimizu, Y.; Ahn, D. S.; Komatsubara, T.; Nishimura, S.; Baba, H.; Nishimura, D.; Isobe, T.; Kaneko, M.; Kubono, S.; Sakurai, H.; Shimizu, H.; Sumikama, T.; Doornenbal, P.; Kusaka, K.; Yanagisawa, Y.; Ohtake, M.; Fukunishi, N.; Michimasa, S.] RIKEN Nishina Ctr Accelerator Based Sci, RIKEN, 2-1 Hirosawa, Wako, Saitama 3510198, Japan, Email: hsuzuki@ribf.riken.jp |
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