Decay pattern of the pygmy dipole resonance in ¹⁴⁰Ce
- Isaak, Johann
- Löher, Bastian
- Savran, Deniz
- Aumann, Thomas
- Beller, Jacob
- Cooper, Nathan
- Derya, Vera
- Duchêne, Marc
- Endres, Janis
- Fiori, Enrico
- Kelley, John H.
- Knörzer, Michael
- Pietralla, Norbert
- Ponomarev, V. Yu.
- Romig, Christopher
- Scheck, Marcus
- Scheit, Heiko
- Silva, Joel
- Tonchev, Anton P.
- Tornow, Werner
- Weller, Henry R.
- Werner, Volker
- Zilges, Andreas
- Zweidinger, Markus
Publication date
May 2015
DOIAbstract
The decay behavior of low-lying dipole states in 140Ce was investigated exploiting the γ3-setup at the HIγS facility using quasi-monochromatic photon beams. Branching ratios of individual excited states as well as average branching ratios to low-lying states have been extracted using γ – γ coincidence measurements. The comparison of the average branching ratios to QPM calculations shows a remarkable agreement between experiment and theory in the energy range from 5.0 to 8.5 MeV
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