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RIKEN Nishina Center for Accelerator-Based Science Superheavy Element Research Group

Director: Hiromitsu Haba (D.Sc.)

Research Summary

Hiromitsu Haba

The heavy elements with atomic numbers exceeding 103 are called superheavy elements (SHEs). Superheavy Element Research Group, Superheavy Element Devise Development Team and Nuclear Chemistry Group work together to investigate synthesis of SHEs, nuclear properties of SHE nuclei, and chemical properties of SHEs. We also develop and maintain SHE production and separation devices, detectors, and chemistry apparatuses.

Main Research Fields

  • Mathematical & Physical Sciences

Related Research Fields

  • Interdisciplinary Science & Engineering
  • Particle/Nuclear/Astro physics
  • Inorganic/Coordination chemistry, Analytical chemistry
  • Quantum beam science

Keywords

  • Superheavy Element
  • New Element
  • Radioisotope
  • Nuclear Physics
  • Nuclear Chemistry

Selected Publications

  • 1. H. Haba, F. Fan, D. Kaji, Y. Kasamatsu, H. Kikunaga, Y. Komori, N. Kondo, H. Kudo, K. Morimoto, K. Morita, M. Murakami, K. Nishio, J. P. Omtvedt, K. Ooe, Z. Qin, D. Sato, N. Sato, T. K. Sato, Y. Shigekawa, A. Shinohara, M. Takeyama, T. Tanaka, A. Toyoshima, K. Tsukada, Y. Wakabayashi, Y. Wang, S. Wulff, S. Yamaki, S. Yano, Y. Yasuda, and T. Yokokita.:
    "Production of 266Bh in the 248Cm(23Na,5n)266Bh reaction and its decay properties"
    Phys. Rev. C 102, 024625 (2020).
  • 2. T. Tanaka, K. Morita, K. Morimoto, D. Kaji, H. Haba, R. A. Boll, N. T. Brewer, S. Van Cleve, D. J. Dean, S. Ishizawa, Y. Ito, Y. Komori, K. Nishio, T. Niwase, B. C. Rasco, J. B. Roberto, K. P. Rykaczewski, H. Sakai, D. W. Stracener, and K. Hagino.:
    "Fusion dynamics for hot fusion reactions to synthesize superheavy nuclei revealed in quasielastic barrier distributions"
    Phys. Rev. Lett. 124, 052502 (2020).
  • 3. H. Haba.:
    "A new period in superheavy-element hunting"
    Nat. Chem. 11, 10 (2019).
  • 4. H. Haba.:
    "Synthesis of superheavy elements –Synthesis and discovery of the superheavy elements with atomic number Z ≥ 113–"
    Radioisotopes 67, 277 (2018) (in Japanese).
  • 5. 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).
  • 6. 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).
  • 7. 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).
  • 8. 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).
  • 9. 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).
  • 10. 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).

Recent Research Results

Related Links

Lab Members

Principal investigator

Hiromitsu Haba
Director

Core members

Daiya Kaji
Senior Technical Scientist

Contact Information

Nishina Building
2-1 Hirosawa,
Wako, Saitama
351-0198, Japan
Email: haba [at] riken.jp

Organization

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