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Theβ+ decay of the new isotope86Mo and the first observation of86mNb

  • T. Shizuma
  • M. Kidera
  • E. Ideguchi
  • A. Odahara
  • H. Tomura
  • S. Suematsu
  • T. Kuroyanagi
  • Y. Gono
  • S. Mitarai
  • J. Mukai
  • T. Komatsubara
  • K. Furuno
  • K. Heiguchi
Nuclear Structure and Reactions

Abstract

Theβ+ decay of86Mo has been firstly investigated by means ofβγ spectroscopy. The86Mo nuclei were produced by fusion-evaporation reactions of54Fe (35Cl, 1 p2n) and58Ni (32S,2p 2n) at beam energies of 103 and 120 MeV, respectively. Threeγ rays of 47.3, 49.8 and 187.0 keV were unambiguously identified to follow theβ+ decay of86Mo by results of andβγ coincidence and cross-bombardment. A half life and a maximumβ+-ray energy of86Mo were determined to be 19.6±1.1 s and 3.9±0.4 MeV, respectively. A decay scheme of86Mo is proposed in this article. Furthermore, a decay of86Nb has been studied using the same combinations of projectiles and targets, and a newβ-decaying isomer86mNb was observed with a half life of 56.3±8.3 s.

PACS

23.40.−s 27.50.+e 

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Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • T. Shizuma
    • 1
  • M. Kidera
    • 1
  • E. Ideguchi
    • 1
  • A. Odahara
    • 1
  • H. Tomura
    • 1
  • S. Suematsu
    • 1
  • T. Kuroyanagi
    • 1
  • Y. Gono
    • 1
  • S. Mitarai
    • 1
  • J. Mukai
    • 2
  • T. Komatsubara
    • 2
  • K. Furuno
    • 2
  • K. Heiguchi
    • 3
  1. 1.Department of Physics, Faculty of ScienceKyushu UniversityFukuokaJapan
  2. 2.Institute of Physics and Tandem Accelerator CenterUniversity of TsukubaIbarakiJapan
  3. 3.Graduate School of ScienceNiigata UniversityNiigataJapan

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