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Theβ + decay of the new isotope86Mo and the first observation of86m Nb |
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| Authors: | 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 |
| Institution: | 1. Department of Physics, Faculty of Science, Kyushu University, 812, Fukuoka, Japan 2. Institute of Physics and Tandem Accelerator Center, University of Tsukuba, 305, Ibaraki, Japan 3. Graduate School of Science, Niigata University, 950-21, Niigata, Japan |
| Abstract: | Theβ + decay of86Mo has been firstly investigated by means ofβγ spectroscopy. The86Mo nuclei were produced by fusion-evaporation reactions of54 Fe (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 ofXγ 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 isomer86m Nb was observed with a half life of 56.3±8.3 s. |
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