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

Cite this

Benouaret, N., Beller, J., Isaak, J., Kelley, J. H., Pai, H., Pietralla, N., ... Zweidinger, M. (2015). QPM Analysis of Tl-205 Nuclear Excitations below the Giant Dipole Resonance. In CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS (Vol. 93). [01044] (EPJ Web of Conferences). EDP Sciences. https://doi.org/10.1051/epjconf/20159301044