Superheavy Element Production Team

Staff

Research Areas

Superheavy Element Production Team investigates synthesis of superheavy elements (SHEs), nuclear properties of SHE nuclei, and chemical properties of SHEs in collaboration with Superheavy Element Devise Development Team and Nuclear Chemistry Research Team of RIKEN Nishina Center.

Research Subject

1. Search for new superheavy elements
2. Decay spectroscopy of the heaviest nuclei
3. Study of the chemical properties of the heaviest elements
4. Study of the reaction mechanism of the fusion process (theory)

Press Release

• Search for element 113 concluded at last [2012]

List of Selected Publications

1. H. Haba:
   “Synthesis of superheavy elements –Synthesis and discovery of the superheavy elements with atomic number Z ≥ 113–” Radioisotopes (in press; in Japanese).
   
2. T. Tanaka, Y. Narikiyo, K. Morita, K. Fujita, D. Kaji, K. Morimoto, S. Yamaki, Y. Wakabayashi, K. Tanaka, M. Takeyama, A. Yoneda, H. Haba, Y. Komori, S. Yanou, B. J.-P. Gall, Z. Asfari, H. Faure, H. Hasebe, M. Huang, J. Kanaya, M. Murakami, A. Yoshida, T. Yamaguchi, F. Tokanai, T. Yoshida, S. Yamamoto, Y. Yamano, K. Watanabe, S. Ishizawa, M. Asai, R. Aono, S. Goto, K. Katori, and K. Hagino:
   “Determination of fusion barrier distributions from quasielastic scattering cross sections towards superheavy nuclei synthesis” J. Phys. Soc. Jpn. 87, 014201 (2018).
   
3. G. L. Wilson, M. Takeyama, A. N. Andreyev, B. Andel, S. Antalic, W. N. Catford, L. Ghys, H. Haba, F. P. Heßberger, M. Huang, D. Kaji, Z. Kalaninova, K. Morimoto, K. Morita, M. Murakami, K. Nishio, R. Orlandi, A. G. Smith, K. Tanaka, Y. Wakabayashi, and S. Yamaki:
   “β-delayed fission of ²³⁰Am” Phys. Rev. C 96, 044315 (2017).
   
4. D. Kaji, K. Morita, K. Morimoto, H. Haba, M. Asai, K. Fujita, Z. Gan, H. Geissel, H. Hasebe, S. Hofmann, M. Huang, Y. Komori, L. Ma, J. Maurer, M. Murakami, M. Takeyama, F. Tokanai, T. Tanaka, Y. Wakabayashi, T. Yamaguchi, S. Yamaki, and A. Yoshida:
   “Study of the reaction ⁴⁸Ca + ²⁴⁸Cm → ²⁹⁶Lv* at RIKEN-GARIS” J. Phys. Soc. Jpn. 86, 034201 (2017).
   
5. N. Sato, T. K. Sato, M. Asai, A. Toyoshima, K. Tsukada, Z. J. Li, K. Nishio, Y. Nagame, M. Schädel, H. Haba, S. Ichikawa, and H. Kikunaga:
   “Production of ²⁵⁶Lr in the ^249,250,251Cf + ¹¹B, ²⁴³Am + ¹⁸O, and ²⁴⁸Cm + ¹⁴N reactions” Radiochim. Acta 102, 211 (2014).
   
6. H. Haba, M. Huang, D. Kaji, J. Kanaya, Y. Kudou, K. Morimoto, K. Morita, M. Murakami, K. Ozeki, R. Sakai, T. Sumita, Y. Wakabayashi, A. Yoneda, Y. Kasamatsu, Y. Kikutani, Y. Komori, K. Nakamura, A. Shinohara, H. Kikunaga, H. Kudo, K. Nishio, A. Toyoshima, and K. Tsukada:
   “Production of ²⁶²Db in the ²⁴⁸Cm(¹⁹F,5n)²⁶²Db reaction and decay properties of ²⁶²Db and ²⁵⁸Lr” Phys. Rev. C 89, 024618 (2014).
   
7. M. Murakami, S. Goto, H. Murayama, T. Kojima, H. Kudo, D. Kaji, K. Morimoto, H. Haba, Y. Kudou, T. Sumita, R. Sakai, A. Yoneda, K. Morita, Y. Kasamatsu, H. Kikunaga, and T. K. Sato:
   “Excitation functions for production of Rf isotopes in the ²⁴⁸Cm + ¹⁸O reaction” Phys. Rev. C 88, 024618 (2013).
   
8. T. Sumita, K. Morimoto, D. Kaji, H. Haba, K. Ozeki, R. Sakai, A. Yoneda, A. Yoshida, H. Hasebe, K. Katori, N. Sato, Y. Wakabayashi, S. Mitsuoka, S. Goto, M. Murakami, Y. Kariya, F. Tokanai, K. Mayama, M. Takeyama, T. Moriya, E. Ideguchi, T. Yamaguchi, H. Kikunaga, J. Chiba, and K. Morita:
   “New result on the production of ²⁷⁷Cn by the ²⁰⁸Pb + ⁷⁰Zn reaction” J. Phys. Soc. Jpn. 82, 024202 (2013).
   
9. K. Morita, K. Morimoto, D. Kaji, H. Haba, K. Ozeki, Y. Kudou, T. Sumita, Y. Wakabayashi, A. Yoneda, K. Tanaka, S. Yamaki, R. Sakai, T. Akiyama, S. Goto, H. Hasebe, M. Huang, T. Huang, E. Ideguchi, Y. Kasamatsu, K. Katori, Y. Kariya, H. Kikunaga, H. Koura, H. Kudo, A. Mashiko, K. Mayama, S. Mitsuoka, T. Moriya, M. Murakami, H. Murayama, S. Namai, A. Ozawa, N. Sato, K. Sueki, M. Takeyama, F. Tokanai, T. Yamaguchi, and A. Yoshida:
   “New result in the production and decay of an isotope, ²⁷⁸113, of the 113th element” J. Phys. Soc. Jpn. 81, 103201 (2012).
   
10. H. Haba, D. Kaji, Y. Kudou, K. Morimoto, K. Morita, K. Ozeki, R. Sakai, T. Sumita, A. Yoneda, Y. Kasamatsu, Y. Komori, A. Shinohara, H. Kikunaga, H. Kudo, K. Nishio, K. Ooe, N. Sato, and K. Tsukada:
    “Production of ²⁶⁵Sg in the ²⁴⁸Cm(²²Ne,5n)²⁶⁵Sg reaction and decay properties of two isomeric states in ²⁶⁵Sg” Phys. Rev. C 85, 024611 (2012).