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Collectivity at N=40 in neutron-rich Cr64

A. Gade, R. V. F. Janssens, T. Baugher, D. Bazin, B. A. Brown, M. P. Carpenter, C. J. Chiara, A. N. Deacon, S. J. Freeman, G. F. Grinyer, C. R. Hoffman, B. P. Kay, F. G. Kondev, T. Lauritsen, S. McDaniel, K. Meierbachtol, A. Ratkiewicz, S. R. Stroberg, K. A. Walsh, D. Weisshaar, R. Winkler, and S. Zhu
Phys. Rev. C 81, 051304(R) – Published 28 May 2010

Abstract

Be9-induced inelastic scattering of Fe62,64,66 and Cr60,62,64 was performed at intermediate beam energies. Excited states in Cr64 were measured for the first time. Energies and population patterns of excited states in these neutron-rich Fe and Cr nuclei are compared and interpreted in the framework of large-scale shell-model calculations in different model spaces. Evidence for increased collectivity and for distinct structural changes between the neighboring Fe and Cr isotopic chains near N=40 is presented.

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  • Received 19 March 2010

DOI:https://doi.org/10.1103/PhysRevC.81.051304

©2010 American Physical Society

Authors & Affiliations

A. Gade1,2, R. V. F. Janssens3, T. Baugher1,2, D. Bazin1, B. A. Brown1,2, M. P. Carpenter3, C. J. Chiara3,4, A. N. Deacon5, S. J. Freeman5, G. F. Grinyer1, C. R. Hoffman3, B. P. Kay3, F. G. Kondev6, T. Lauritsen3, S. McDaniel1,2, K. Meierbachtol1,7, A. Ratkiewicz1,2, S. R. Stroberg1,2, K. A. Walsh1,2, D. Weisshaar1, R. Winkler1, and S. Zhu3

  • 1National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
  • 2Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
  • 3Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
  • 4Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA
  • 5School of Physics and Astronomy, Schuster Laboratory, University of Manchester, Manchester M13 9PL, United Kingdom
  • 6Nuclear Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
  • 7Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA

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Issue

Vol. 81, Iss. 5 — May 2010

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