Abstract
In this contribution it is explored whether -ray spectroscopy following decay with high values from mother nuclei with low ground-state spin can be exploited as a probe for the pygmy dipole resonance. The suitability of this approach is demonstrated by a comparison between data from photon scattering, , and -decay data. It is demonstrated that decay populates levels associated with the pygmy dipole resonance, but only a fraction of those. The complementary insight into the wave functions probed by decay is elucidated by calculations within the quasiparticle phonon model. It is demonstrated that decay dominantly populates complex configurations, which are only weakly excited in inelastic scattering experiments.
- Received 30 October 2015
DOI:https://doi.org/10.1103/PhysRevLett.116.132501
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