Production and decay of the isotope 271 Ds (Z = 110)

K. Morita; K. Morimoto; D. Kaji; H. Haba; E. Ideguchi; R. Kanungo; K. Katori; H. Koura; H. Kudo; T. Ohnishi; A. Ozawa; T. Suda; K. Sueki; I. Tanihata; H. Xu; A. V. Yeremin; A. Yoneda; A. Yoshida; Y.-L. Zhao; T. Zheng

doi:10.1140/epja/i2003-10205-1

EPJ

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2019 Impact factor 2.176

Hadrons and Nuclei

Eur. Phys. J. A (2004) 21: 257-263
https://doi.org/10.1140/epja/i2003-10205-1

Production and decay of the isotope ²⁷¹ Ds (Z = 110)

K. Morita¹^*, K. Morimoto¹, D. Kaji¹^,2, H. Haba¹, E. Ideguchi¹, R. Kanungo¹, K. Katori¹, H. Koura¹^,3, H. Kudo², T. Ohnishi¹, A. Ozawa¹, T. Suda¹, K. Sueki⁴, I. Tanihata¹, H. Xu⁵, A. V. Yeremin⁶, A. Yoneda¹, A. Yoshida¹, Y.-L. Zhao⁷ and T. Zheng⁸

¹ RIKEN (The Institute of Physical and Chemical research), 351-0198, Wako-shi, Saitama, Japan
² Niigata University, 950-2181, Ikarashi, Niigata, Japan
³ Advanced Research Institute for Science and Engineering, Waseda University, Okubo, Shinjuku-ku, 169-8555, Tokyo, Japan
⁴ University of Tsukuba, 3058577, Tsukuba, Ibaragi, Japan
⁵ Institute of Modern Physics, Chinese Academy of Science, 730000, Lanzhou, PRC
⁶ Flerov Laboratory of Nuclear Reactions, JINR, RU-141 980, Dubna, Russia
⁷ Institute of High Energy Physics, Chinese Academy of Science, 100039, Beijing, PRC
⁸ School of Physics, Peking University, 100871, Beijing, PRC

^* e-mail: morita@rarfaxp.riken.go.jp

Abstract

Production and decay of the isotope ²⁷¹Ds were studied. The isotope was produced by ²⁰⁸Pb + ⁶⁴Ni ²⁷¹Ds + n reaction. Fourteen -decay chains have been assigned to decays originating from the isotope ²⁷¹Ds. An excitation function of the production of this isotope was measured. The results have provided a good confirmation of production and decay of ²⁷¹Ds reported by Hofmann et al. The presence of an isomeric state in ²⁷¹Ds has been confirmed. The existence of a possible isomeric state in ²⁶⁷Hs is presented.