High-spin structure in $^{40}$K

P.-A. Söderström L. Charles 1 G. Duchêne 1 J. Chavas 2 M. Karolak 2 W. Korten 2 A. Obertelli 2 M.D. Salsac 2 Ch. Theisen 2 P. Désesquelles 3 N. Dosme 4 N. Karkour 5 A. Görgen 2 N. Redon 6 O. Stézowski 6 J. Ljungvall 3
3 CSNSM SNO
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
4 CSNSM INFOR
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
5 CSNSM ELEC
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
Abstract : 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.
docType_s :
Journal articles
Physical Review C, American Physical Society, 2012, 86, pp.054320. <10.1103/PhysRevC.86.054320>


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P.-A. Söderström, L. Charles, G. Duchêne, J. Chavas, M. Karolak, et al.. High-spin structure in $^{40}$K. Physical Review C, American Physical Society, 2012, 86, pp.054320. <10.1103/PhysRevC.86.054320>. <in2p3-00756667>

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