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Tu, X.L.; Xu, H.S.; Wang, M.; H. Zhang, Y.; Litvinov, Yu.A.; Sun, Y.; Schatz, H.; H. Zhou, X.; J. Yuan, Y.; Xia, J.W.; Audi, G.; Blaum, K.; M. Du, C.; Geng, P.; G. Hu, Z.; X. Huang, W.; L. Jin, S.; X. Liu, L.; Liu, Yehan; Ma, X.; S. Mao, R.; Mei, B.; Shuai, P.; Sun, Z.Y.; Suzuki, H.; Tang, S.W.; S. Wang, J.; T. Wang, S.; Q. Xiao, G.; Xu, X.; Yamaguchi, T.; Yamaguchi, Y.; L. Yan, X.; C. Yang, J.; P. Ye, R.; D. Zang, Y.; Zhao, H.W.; C. Zhao, T.; Zhang, X.Y.; L. Zhan, W.
Physical review letters, 03/2011, Letnik: 106Journal Article
Mass excesses of short-lived A ¼ 2Z 1 nuclei 63Ge, 65As, 67Se, and 71Kr have been directly measured to be 46 921ð37Þ, 46 937ð85Þ, 46 580ð67Þ, and 46 320ð141Þ keV, respectively. The deduced proton separation energy of 90ð85Þ keV for 65As shows that this nucleus is only slightly proton unbound. X-ray burst model calculations with the new mass excess of 65As suggest that the majority of the reaction flow passes through 64Ge via proton capture, indicating that 64Ge is not a significant rp-process waiting point.
