Abstract
Theβ − decays of103Nb and105Nb have been studied at the fission product separators JOSEF and LOHENGRIN. Half-lives of (1.5±0.2) s and (2.95±0.06) s, respectively, have been determined for these decays. Fromγ singles andγ-γ coincidence measurements extended level schemes for103Mo and105Mo have been established for the first time. The lowest energy levels of these nuclei are consistent with the interpretation as members of rotational bands built on a 3/2+ [411] Nilsson state. Evidence is presented for the location of the 9/2+ [404] configuration.
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On leave of absence (1980–82) from Faculty of Engineering, Hiroshima University, Higashi-Hiroshima, Japan
On leave of absence (1978) from Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky, USA
On leave of absence (1982/83) from Nuclear Chemistry Division, University of California, LLNL, Livermore, California, USA
The authors from Jülich acknowledge with pleasure fruitful discussions with Profs. O.W.B. Schult, F.K. Wohn and A. Wolf.
They wish to thank Messrs. W. Borgs, J.A. Jeglorz and R. Seidemann for their help in running the separator. B.D. Kern, R.A. Meyer and K. Shizuma are indebted to the KFA Jülich for the fellowship which was granted during their stay at Jülich. The Mainz group would like to thank the Bundesministerium für Forschung und Technologie and GSI, Darmstadt for financial support. Furthermore the help of Mr. U. Tharun, Drs. E. Monnand, B. Pfeiffer and F. Schussler during the experiments at LOHENGRIN is greatly acknowledged. Mrs. H. Sieling has very carefully typed the manuscript.
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Shizuma, K., Ahrens, H., Bocquet, J.P. et al. Odd neutron nuclei near A=100: Rotational bands in103Mo and105Mo populated in theβ − decays of103Nb and105Nb. Z Physik A 315, 65–75 (1984). https://doi.org/10.1007/BF01436210
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DOI: https://doi.org/10.1007/BF01436210