New isomers in the full seniority scheme of neutron-rich lead isotopes: the role of effective three-body forces

  • A. Gottardo
  • , J.J. Valiente-Dobon
  • , G. Benzoni
  • , R. Nicolini
  • , A. Gadea
  • , S. Lunardi
  • , P. Boutachkov
  • , Alison Bruce
  • , M. Gorska
  • , J. Grebosz
  • , S. Pietri
  • , Zs. Podolyak
  • , M. Pfützner
  • , P.H. Regan
  • , H. Weick
  • , J.A. Nunez
  • , A. Algora
  • , N. Al-Dahan
  • , G. de Angelis
  • , Y. Ayyad
  • N. Alkhomashi, P.R.P. Allegro, D. Bazzacco, J. Benlliure, M. Bowry, A. Bracco, M. Bunce, F. Camera, E. Casarejos, M.L. Cortes, F.C.L. Crespi, A. Corsi, A.M.D. Bacelar, A.Y. Deo, C. Domingo-Pardo, M. Doncel, Zs. Dombradi, T. Engert, K. Eppinger, G.F. Farrelly, F. Farinon, E. Farnea, H. Geissel, J. Gerl, N. Goel, E. Gregor, T. Habermann, R. Hoischen, R. Janik, S. Klupp

Research output: Contribution to journalArticlepeer-review

Abstract

The neutron-rich lead isotopes, up to 216Pb, have been studied for the first time, exploiting the fragmentation of a primary uranium beam at the FRS-RISING setup at GSI. The observed isomeric states exhibit electromagnetic transition strengths which deviate from state-of-the-art shell-model calculations. It is shown that their complete description demands the introduction of effective three-body interactions and two-body transition operators in the conventional neutron valence space beyond 208Pb.
Original languageEnglish
JournalPhysical Review Letters
Volume109
Issue number16
DOIs
Publication statusPublished - 16 Oct 2012

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