Spectroscopy of the odd-odd fp-shell nucleus Sc52 from secondary fragmentation

A. Gade, R. V. F. Janssens, D. Bazin, B. A. Brown, C. M. Campbell, M. P. Carpenter, J. M. Cook, A. N. Deacon, D.-C. Dinca, S. J. Freeman, T. Glasmacher, B. P. Kay, P. F. Mantica, W. F. Mueller, J. R. Terry, and S. Zhu
Phys. Rev. C 73, 037309 – Published 22 March 2006

Abstract

The odd-odd fp-shell nucleus Sc52 was investigated using in-beam γ-ray spectroscopy following secondary fragmentation of a V55 and Cr57 cocktail beam. Aside from the known γ-ray transition at 674(5) keV, a new decay at Eγ=212(3) keV was observed. It is attributed to the depopulation of a low-lying excited level. This new state is discussed in the framework of shell-model calculations with the GXPF1, GXPF1A, and KB3G effective interactions. These calculations are found to be fairly robust for the low-lying level scheme of Sc52 irrespective of the choice of the effective interaction. In addition, the frequency of spin values predicted by the shell model is successfully modeled by a spin distribution formulated in a statistical approach with an empirical, energy-independent spin-cutoff parameter.

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  • Received 17 January 2006

DOI:https://doi.org/10.1103/PhysRevC.73.037309

©2006 American Physical Society

Authors & Affiliations

A. Gade1, R. V. F. Janssens2, D. Bazin1, B. A. Brown1,3, C. M. Campbell1,3, M. P. Carpenter2, J. M. Cook1,3, A. N. Deacon4, D.-C. Dinca1,3, S. J. Freeman4, T. Glasmacher1,3, B. P. Kay4, P. F. Mantica1,5, W. F. Mueller1, J. R. Terry1,3, and S. Zhu2

  • 1National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
  • 2Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
  • 3Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
  • 4Department of Physics and Astronomy, Schuster Laboratory, University of Manchester, Manchester M13 9PL, United Kingdom
  • 5Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA

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Issue

Vol. 73, Iss. 3 — March 2006

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