γ-Ray spectroscopy of core-excited states in51Mn

J. Ekman, D. Rudolph, C. Andreoiu, C. Fahlander, M. N. Mineva, M. A. Bentley, S. J. Williams, R. Charity, E. Ideguchi, W. Reviol, D. G. Sarantites, V. Tomov, R. M. Clark, M. Cromaz, P. Fallon, A. O. Macchiavelli, M. P. Carpenter, D. Seweryniak

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    19 Scopus citations

    Abstract

    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 4-π-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.

    Original languageEnglish
    Article number014306
    Pages (from-to)014306-1-014306-14
    JournalPhysical Review C - Nuclear Physics
    Volume70
    Issue number1
    DOIs
    StatePublished - Jul 2004

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