100 research outputs found
Concentration of electric dipole strength below the neutron separation energy in N = 82 nuclei
The semi-magic nuclei Ba-138, Ce-140, and Sm-144 have been investigated in
photon scattering experiments up to an excitation energy of about 10 MeV. The
distribution of the electric dipole strength shows a resonance like structure
at energies between 5.5 and 8 MeV exhausting up to 1% of the isovector E1
Energy Weighted Sum Rule.Comment: 10 pages, 3 figure
Transition rates and nuclear structure changes in mirror nuclei 47Cr and 47V
Lifetime measurements in the mirror nuclei 47Cr and 47V were performed by
means of the Doppler-shift attenuation method using the multidetector array
EUROBALL, in conjunction with the ancillary detectors ISIS and the Neutron
Wall. The determined transition strengths in the yrast cascades are well
described by full pf shell model calculations.Comment: Latex2e, 11 pages, 3 figure
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