Isaak, J; Savran, D; Krtička, M; Ahmed, MW; Beller, J; Fiori, E; Glorius, J; Kelley, JH; Löher, B; Pietralla, N; Romig, C; Rusev, G; Scheck, M; Schnorrenberger, L; Silva, J; Sonnabend, K; Tonchev, AP; Tornow, W; Weller, HR; Zweidinger, M, *Constraining nuclear photon strength functions by the decay properties of photo-excited states*,
Physics Letters B, vol. 727 no. 4-5
(December, 2013),
pp. 361-365 [doi] .
**Abstract:**

*A new approach for constraining the low-energy part of the electric dipole Photon Strength Function (E1-PSF) is presented. Experiments at the Darmstadt High-Intensity Photon Setup and the High Intensity γ→-Ray Source have been performed to investigate the decay properties of 130 Te between 5.50 and 8.15 MeV excitation energy. In particular, the average γ-ray branching ratio to the ground state and the population intensity of low-lying excited states have been studied. A comparison to the statistical model shows that the latter is sensitive to the low-energy behavior of the E1-PSF, while the average ground state branching ratio cannot be described by the statistical model in the energy range between 5.5 and 6.5 MeV. © 2013 Elsevier B.V.*