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Shape evolution and magnetic rotation in 141Nd

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Abstract

The high-spin states in 141Nd were investigated using the 96Zr(48Ca, 3n) reaction and the EUROBALL array. The level scheme has been extended up to an excitation energy of around 16MeV and spin 81/2. Two new bands of dipole transitions and three bands presumably of quadrupole transitions were identified and their connections to low-lying states were established. Cranked Nilsson-Strutinsky and tilted axis cranking calculations are combined in the interpretation of the observed dipole bands. The high-spin bands with assigned quadrupole transitions are interpreted as triaxial bands, while the dipole bands appear in the calculations to exhibit a shape evolution from low-deformation triaxial to spherical shape. They can be classified as magnetic rotation, with transition probabilities that show the characteristic decrease with angular momentum caused by the shears mechanism.

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Author information

Author notes

  1. A. K. Singh

    Present address: Department of Physics, Indian Institute of Technology Kharagpur, IN-721302, Kharagpur, India

Authors and Affiliations

  1. Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, Université Paris-Sud and CNRS/IN2P3, Bât. 104-108, F-91405, Orsay, France

    T. Zerrouki, C. M. Petrache, R. Leguillon, K. Hauschild, A. Korichi & A. Lopez-Martens

  2. Department of Physics, University of Notre Dame, 46556, Notre Dame, IN, USA

    S. Frauendorf

  3. Division of Mathematical Physics, LTH, Lund University, P.O. Box 118, SE-221 00, Lund, Sweden

    I. Ragnarsson

  4. Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, Nußalee 14-16, D-53115, Bonn, Germany

    H. Hübel, A. Neußer-Neffgen, A. Al-Khatib, P. Bringel, A. Bürger, N. Nenoff, G. Schönwaßer & A. K. Singh

  5. Departement de Recherches Subatomiques, Institut Pluridisciplinaire Hubert Curien, DRS-IPHC, 23 rue du Loess, BP 28, F-67037, Strasbourg, France

    D. Curien

  6. Niels Bohr Institute, Blegdamsvej 17, DK-2100, Copenhagen, Denmark

    G. B. Hagemann, B. Herskind & G. Sletten

  7. Nuclear Science Division, Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA

    P. Fallon

  8. Departement de Physics, University of Oslo, Oslo, Norway

    A. Görgen

  9. The Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, PL-31342, Krakow, Poland

    P. Bednarczyk

Authors
  1. T. Zerrouki
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  2. C. M. Petrache
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  10. A. Neußer-Neffgen
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  15. G. Schönwaßer
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  16. A. K. Singh
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Corresponding author

Correspondence to C. M. Petrache.

Additional information

Communicated by A. Jokinen

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Zerrouki, T., Petrache, C.M., Leguillon, R. et al. Shape evolution and magnetic rotation in 141Nd. Eur. Phys. J. A 51, 50 (2015). https://doi.org/10.1140/epja/i2015-15050-y

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  • DOI: https://doi.org/10.1140/epja/i2015-15050-y

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