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QPM Analysis of Tl-205 Nuclear Excitations below the Giant Dipole Resonance

  • N. Benouaret
  • , J. Beller
  • , J. Isaak
  • , J. H. Kelley
  • , H. Pai
  • , N. Pietralla
  • , V. Yu. Ponomarev
  • , R. Raut
  • , C. Romig
  • , G. Rusev
  • , D. Savran
  • , M. Scheck
  • , L. Schnorrenberger
  • , K. Sonnabend
  • , A. P. Tonchev
  • , W. Tornow
  • , H. R. Weller
  • , M. Zweidinger

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We analysed our experimental recent findings of the dipole response of the odd-mass stable nucleus Tl-205 within the quasi-particle phonon model. Using the phonon basis constructed for the neighbouring Hg-204 and wave function configurations for 205Tl consisting of a mixture of quasiparticle circle times N-phonon configurations (N= 0,1,2), only one group of fragmented dipole excited states has been reproduced at 5.5 MeV in comparison to the experimental distribution which shows a second group at about 5 MeV. The computed dipole transition strengths are mainly of E1 character which could be associated to the pygmy dipole resonance.
Original languageEnglish
Title of host publicationCGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
PublisherEDP Sciences
Volume93
ISBN (Print)978-2-7598-1794-8
DOIs
Publication statusPublished - 2015
Externally publishedYes

Publication series

NameEPJ Web of Conferences
PublisherEDP Sciences
ISSN (Print)2100-014X

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