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New bands and spin-parity assignments in 111Ru

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Abstract.

The 111Ru nucleus, populated in the spontaneous fission of 248Cm has been studied by means of prompt gamma spectroscopy using the EUROGAM2 array. Spin and parity assignments, based on angular correlations, linear polarization, and conversion coefficient measurements differ from those available in the literature. New bands are reported, which incorporate γ transitions seen previously but not placed in the scheme of 111Ru or placed incorrectly. The bands are interpreted as neutron excitations into subshells originating predominantly from the h11/2, g7/2 and s1/2 spherical orbitals. The s1/2 band, strongly mixed with the d3/2, d5/2 and g7/2 configurations, is observed for the first time in this region.

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Authors and Affiliations

  1. Faculty of Physics, Warsaw University, ul. Hoża 69, PL-00-681, Warsaw, Poland

    W. Urban, T. Rzaca-Urban, Ch. Droste & S. G. Rohoziński

  2. Schuster Laboratory, Department of Physics and Astronomy, University of Manchester, M13 9PL, Manchester, UK

    J. L. Durell, W. R. Phillips, A. G. Smith & B. J. Varley

  3. Institut de Recherches Subatomiques UMR7500, CNRS-IN2P3 et Université Louis Pasteur, F-67037, Strasbourg, France

    N. Schulz

  4. Argonne National Laboratory, 60439, Argonne, IL, USA

    I. Ahmad

  5. Laboratoire de Physique Subatomique et de Cosmologie, IN2P3-CNRS/Université Joseph Fourier, F-38026, Grenoble Cedex, France

    J. A. Pinston

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  1. W. Urban
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  4. S. G. Rohoziński
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Correspondence to W. Urban.

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Urban, W., Rzaca-Urban, T., Droste, C. et al. New bands and spin-parity assignments in 111Ru. Eur. Phys. J. A 22, 231–239 (2004). https://doi.org/10.1140/epja/i2003-10234-8

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  • DOI: https://doi.org/10.1140/epja/i2003-10234-8

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