Excited states in the neutron deficient nuclei138Sm and139Eu

• DOI: 10.1007/bf01411962
• Publication Date: 2005-04-03T05:38:42Z
• Authors: S. Lunardi; F. Scarlassara; F. Soramel; S. Beghini; M. Morando; C. Signorini; W. Meczynski; W. Starzecki; G. Fortuna; A. M. Stefanini
• Keywords: Recoil

Excited states in the two N=76 nuclei138Sm and139Eu have been identified via32S induced reactions on different targets using γ-ray spectroscopy methods. Lifetimes have been measured with the Doppler shift recoil distance technique, showing the coexistence of a large nuclear deformation (β=0.24) with excitations of single particle character. The E2 transition strengths in the odd-even nucleus139Eu and in its core138Sm are discussed.