New Isomers in the Full Seniority Scheme of Neutron-Rich Lead Isotopes: The Role of Effective Three-Body Forces

作者：Gottardo A^*; Valiente Dobon J J; Benzoni G; Nicolini R; Gadea A; Lunardi S; Boutachkov P; Bruce A M; Gorska M; Grebosz J; Pietri S; Podolyak Zs; Pfuetzner M; Regan P H; Weick H; Alcantara Nunez J; Algora A; Al Dahan N; de Angelis G; Ayyad Y; Alkhomashi N; Allegro P R P; Bazzacco D; Benlliure J; Bowry M; Bracco A; Bunce M; Camera F; Casarejos E; Cortes M L; Crespi F C L; Corsi A; Bacelar A M Denis; Deo A Y

来源：Physical Review Letters, 2012, 109(16): 162502.

DOI：10.1103/PhysRevLett.109.162502

The neutron-rich lead isotopes, up to Pb-216, 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 Pb-208.

• 出版日期2012-10-16