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Phys. Rev. C 70, 014306 (2004) [14 pages]

γ-ray spectroscopy of core-excited states in 51Mn

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J. Ekman, D. Rudolph, C. Andreoiu*, C. Fahlander, and M. N. Mineva
Department of Physics, Lund University, S-22100 Lund, Sweden

M. A. Bentley and S. J. Williams†
School of Chemistry and Physics, Keele University, Keele, Staffordshire, ST5 5BG, United Kingdom

R. Charity, E. Ideguchi‡, W. Reviol, D. G. Sarantites, and V. Tomov
Chemistry Department, Washington University, St. Louis, Missouri 63130, USA

R. M. Clark, M. Cromaz, P. Fallon, and A. O. Macchiavelli
Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

M. P. Carpenter and D. Seweryniak
Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA

Received 13 April 2004; published 13 July 2004

The level scheme of 51Mn has been investigated using the 28Si(32S,2α1p)51Mn fusion-evaporation reaction at 125 MeV beam energy. The γ rays were detected in the Ge-detector array Gammasphere, which was coupled to the 4π-charged-particle detector Microball and the Neutron Shell for the coincident detection of evaporated particles. Over 100 new γ-ray transitions connecting some 50 excited states have been identified. Most of the states are built on particle-hole excitations across the shell gaps at particle number N=Z=28. The rich experimental data allows for a comprehensive comparison of core-excited states with results from large-scale shell-model calculations, which are known to provide excellent predictions for the lower-lying yrast and near-yrast levels in 1f7∕2 nuclei.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.70.014306
DOI:
10.1103/PhysRevC.70.014306
PACS:
21.60.Cs, 23.20.En, 23.20.Lv, 27.40.+z

*Present address: Department of Physics, University of Guelph, Guelph, Ontario, Canada NIG 2W1.

†Present address: School of Chemistry and Physics, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom.

‡Present address: RIKEN, Saitama 351-0198, Japan.

 
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