{"paper":{"title":"Direct mass measurements of neutron-rich $^{86}$Kr projectile fragments and the persistence of neutron magic number $N$ = 32 in Sc isotopes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"Bao-hua Sun, Chao-yi Fu, Da-wei Liu, Guo-ging Xiao, Hong-Wei Zhao, Hu-Shan Xu, Jian-cheng Yang, Jia-wen Xia, Klaus Blaum, Meng Wang, Peng Shuai, Qi Zeng, Rui-jiu Chen, Rui-shi Mao, Tie-cheneg Zhao, T. Uesaka, T. Yamaguchi, Wei Zhang, Wen-jia Huang, Wen-long Zhan, Xiang-cheng Chen, Xiao-Hong Zhou, Xiao-lin Tu, Xing Xu, Xin-liang Yan, Xin-wen Ma, Yi-hua Lam, You-Jin Yuan, Yuan-ming Xing, Yu-Hu Zhang, Yuri A. Litvinov, Y. Yamaguchi, Zheng-Guo Hu, Zhuang Ge","submitted_at":"2016-03-21T12:17:35Z","abstract_excerpt":"In this paper, we present direct mass measurements of neutron-rich $^{86}$Kr projectile fragments conducted at the HIRFL-CSR facility in Lanzhou by employing the Isochronous Mass Spectrometry (IMS) method. The new mass excesses of $^{52-54}$Sc nuclides are determined to be -40492(82), -38928(114), -34654(540) keV, which show a significant increase of binding energy compared to the reported ones in the Atomic Mass Evaluation 2012 (AME12). In particular, $^{53}$Sc and $^{54}$Sc are more bound by 0.8 MeV and 1.0 MeV, respectively. The behavior of the two neutron separation energy with neutron num"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.06404","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}