Constraining nuclear photon strength functions by the decay properties of photo-excited states

J. Isaak, D. Savran, M. Krticka, M.W. Ahmed, J. Beller, E. Fiori, J. Glorius, J. H. Kelley, B. Loher, N. Pietralla, C. Romig, G. Rusev, Marcus Scheck, L. Schnorrenberger, J. Silva, K. Sonnabend, A.P. Tonchev, W. Tornow, H.R. Weller, M. Zweidinger

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

A new approach for constraining the low-energy part of the electric dipole Photon Strength Function (E 1-PSF) is presented. Experiments at the Darmstadt High-Intensity Photon Setup and the High Intensity View the MathML source-Ray Source have been performed to investigate the decay properties of 130Te 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.
Original languageEnglish
Pages (from-to)361-365
Number of pages5
JournalPhysics Letters B
Volume727
Issue number4-5
DOIs
Publication statusPublished - 18 Dec 2013
Externally publishedYes

Keywords

  • photon strength function
  • pygmy dipole resonance
  • nuclear resonance fluorescence
  • gamma-spectroscopy

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