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Physical Review C 86 (2012) 054320
High-spin structure in $^{40}$K
P.-A. Söderström, L. Charles1, G. Duchêne1, J. Chavas2, M. Karolak2, W. Korten2, A. Obertelli2, M.D. Salsac2, Ch. Theisen2, P. Désesquelles3, N. Dosme3, N. Karkour3, A. Görgen2, N. Redon4, O. Stézowski4, J. Ljungvall3
AGATA Collaboration(s)

High-spin states of $^{40}$K have been populated in the fusion-evaporation reaction $^{12}$C($^{30}$Si,np)$^{40}$K and studied by means of $\gamma$-ray spectroscopy techniques using one AGATA triple cluster detector, at INFN - Laboratori Nazionali di Legnaro. Several new states with excitation energy up to 8 MeV and spin up to $10^-$ have been discovered. These new states are discussed in terms of J=3 and T=0 neutron-proton hole pairs. Shell-model calculations in a large model space have shown a good agreement with the experimental data for most of the energy levels. The evolution of the structure of this nucleus is here studied as a function of excitation energy and angular momentum.
1 :  IPHC - Institut Pluridisciplinaire Hubert Curien
2 :  IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA)
3 :  CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
4 :  IPNL - Institut de Physique Nucléaire de Lyon
Physique/Physique Nucléaire Expérimentale
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