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Phys. Rev. C 72, 027302 (2005) [4 pages]

Near-yrast, medium-spin structure of the 107Mo nucleus

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W. Urban1, T. Rząca-Urban1, J. A. Pinston2, J. L. Durell3, W. R. Phillips3, A. G. Smith3, B. J. Varley3, I. Ahmad4, and N. Schulz5
1Faculty of Physics, Warsaw University, ul. Hoża 69, PL-00-681 Warsaw, Poland
2Laboratoire de Physique Subatomique et de Cosmologie, IN2P3-Centre National de la Recherche Scientifique/Université Joseph Fourier, F-38026 Grenoble Cedex, France
3Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
4Argonne National Laboratory, Argonne, Illinois 60439, USA
5Institut de Recherches Subatomiques UMR7500, Centre National de la Recherche Scientifique-IN2P3 et Université Louis Pasteur, F-67037 Strasbourg, France

Received 23 February 2005; published 30 August 2005

Excited states in 107Mo, populated in spontaneous fission of 248Cm, were studied by use of the eurogam2 multidetector array. Spins and parities of the ground state and the 66.0-, 152.1-, and 458.5-keV excited levels, reported previously, were changed based on conversion-coefficient and angular-correlation measurements. Octupole deformation reported previously in 107Mo is dismissed, and we explain the near-yrast structure of 107Mo in terms of rotational bands built on the 5/2+[413], 3/2+[411], and 7/2-[523] orbitals.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.72.027302
DOI:
10.1103/PhysRevC.72.027302
PACS:
23.20.Lv, 21.60.Cs, 25.85.Ca, 27.60.+j
 
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