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

44 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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