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Structure of the Triplet of low-lying states in101Mo |
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| Authors: | H Seyfarth H H Güven B Kardon W D Lauppev G Lhersonneau K Sistemich S Brant N Kaffrell P Maier-Komor H K Vonach V Paar D Vorkapi? R A Meyer |
| Institution: | 1. Institut für Kernphysik, Forschungszentrum Jülich, Postfach 1913, W-5170, Jülich, Germany 6. Institut für Kernchemie, Johannes-Gutenberg-Universit?t Mainz, W-6500, Mainz, Germany 7. Physik-Department, Technische Universit?t München, W-8046, Garching, Germany 8. Institut für Radiumforschung und Kernphysik der Universit?t Wien, A-1090, Wien, Austria 9. Prirodoslovno-matemati?ki fakultet, University of Zagreb, YU-41000, Zagreb, Croatia, Yugoslavia 10. U.S. Department of Energy, Nuclear Physics Division, 20545, Washington D.C., USA 11. Lawrence Livermore National Laboratory, 94550, Livermore, CA, USA |
| Abstract: | The properties of the triplet of low-lying states in101Mo have been studied through spectroscopy of theγ radiation following thermal neutron capture in100Mo and β? decay of101Nb and through a measurement of the proton angular distributions in the100Mo(d,p) reaction with 14 MeV deuteron energy. The half-lives of the 13.5 keV state and the 57.0 keV 5/2+ state have been measured as 226(7) and 133(7)ns, respectively. These values and the quadrupole/dipole mixing ratios of the 13.5 keV and 43.5 keV transitions yield spin and parity 3/2+ for the 13.5 keV level. The E2 components in the 13.5 (3/2+ →1/2+) and 43.5 keV (5/2+→3/2+) transitions are ≦ 8·10?4 and 54(9)%, respectively. The possibility of an additional state near to the 57.0 keV level is discussed. IBFM/PTQM calculations, taking into consideration the transitional character of the100Mo boson core, account for the electromagnetic-transition and transfer-reaction pattern of the triplet of states. |
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