Observation of New Isotope 131Ag via the Two-Step Fragmentation Technique

被引：4
|
作者：
Wang He [1 ,2 ,3 ]
Aoi, N. [4 ]
Takeuchi, S. [3 ]
Matsushita, M. [5 ]
Doornenbal, P. [3 ]
Motobayashi, T. [3 ]
Steppenbeck, D. [5 ]
Yoneda, K. [3 ]
Kobayashi, K. [6 ]
Lee, J. [3 ]
Liu Hong-Na [1 ,2 ,3 ]
Kondo, Y. [7 ]
Yokoyama, R. [5 ]
Sakurai, H. [3 ]
Ye Yan-Lin [1 ,2 ]
机构：
[1] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
[2] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
[3] RIKEN, Nishina Ctr, Wako, Saitama 3510198, Japan
[4] Osaka Univ, Res Ctr Nucl Phys, Osaka 5670047, Japan
[5] Univ Tokyo, Ctr Nucl Study, Wako, Saitama 3510198, Japan
[6] Rikkyo Univ, Dept Phys, Toshima Ku, Tokyo 1728501, Japan
[7] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan
来源：
CHINESE PHYSICS LETTERS | 2013年 / 30卷 / 04期
基金：
中国国家自然科学基金;
关键词：
INTERACTION CROSS-SECTIONS; ASTROPHYSICAL R-PROCESS; MEV CA-48 BEAM; SHELL STRUCTURE; NEUTRON; DEFORMATION; RIKEN;
D O I：
10.1088/0256-307X/30/4/042501
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report on the first observation of the neutron-rich nucleus Ag-131. This isotope was produced via fragmentation reactions of intense secondary radioactive ion beams, including Sn-134,Sn-135. The secondary beams were produced from induced fission reactions from a stable U-238 beam at 345MeV/nucleon. Secondary reaction residues were selected by the ZeroDegree spectrometer and identified by measuring their magnetic rigidity, time of flight, energy loss, and total kinetic energy.
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页数：4
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