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Status of heavy element research using a gas-filled recoil separator at RIKEN |
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| Authors: | Kosuke Morita Kouji Morimoto Daiya Kaji Yu Liang Zhao Atsushi Yoshida Toshimi Suda Akira Yoneda Tetsuya Ohnishi Hiromitsu Haba Eiji Ideguchi Hu Shan Xu Tao Zheng Hisaaki Kudo Keisuke Sueki Kenji Katori Isao Tanihata |
| Institution: | 1. RIKEN (The Institute of Physical and Chemical Research), 351-0198, Wako-shi, Saitama, Japan 2. Niigata University, 950-2181, Niigata, Japan 3. Institute of High Energy Physics, Chinese Academy of Science, 100039, Beijing, P.R. China 4. Institute of Modern Physics, Chinese Academy of Science, 730000, Lanzhou, P.R. China 5. University of Tsukuba, 305-8577, Tsukuba-shi, Ibaragi, Japan |
| Abstract: | A gas-filled type of recoil separator for heavy element research was installed at an experimental hall of RIKEN Linear Accelerator facility to realize getting higher intensity of primary beam and long beam time. Performance of the separator was studied using target recoils and various nuclear reactions. The results show the high performance of the separator for heave element research. As an application of the GARIS, production and identification of an isotope of the 110th element 271110] have been performed using the 208Pb(64Ni,1n)271110] reaction. Three decay chains coincide well both in decay times and energies with the ones reported by the group of SHIP experiment at GSI, Germany. Our results provide a confirmation of the synthesis of an isotope 271110] of element 110. |
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