Spectroscopy of neutron-rich Dy-168,Dy-170: Yrast band evolution close to the NpNn valence maximum

Summary, in English

The yrast sequence of the neutron-rich dysprosium isotope Dy-168 has been studied using multinucleon transfer reactions following collisions between a 460-MeV Se-82 beam and an Er-170 target. The reaction products were identified using the PRISMA magnetic spectrometer and the gamma rays detected using the CLARA HPGe-detector array. The 2(+) and 4(+) members of the previously measured ground-state rotational band of Dy-168 have been confirmed and the yrast band extended up to 10(+). A tentative candidate for the 4(+) -> 2(+) transition in Dy-170 was also identified. The data on these nuclei and on the lighter even-even dysprosium isotopes are interpreted in terms of total Routhian surface calculations and the evolution of collectivity in the vicinity of the proton-neutron valence product maximum is discussed.

• Author: P. -A. Soderstrom; J. Nyberg; P. H. Regan; A. Algora; G. de Angelis; S. F. Ashley; S. Aydin; D. Bazzacco; R. J. Casperson; W. N. Catford; Joakim Cederkäll; R. Chapman; L. Corradi; Claes Fahlander; E. Farnea; E. Fioretto; S. J. Freeman; A. Gadea; W. Gelletly; A. Gottardo; E. Grodner; C. Y. He; G. A. Jones; K. Keyes; M. Labiche; X. Liang; Z. Liu; S. Lunardi; N. Marginean; P. Mason; R. Menegazzo; D. Mengoni; G. Montagnoli; D. Napoli; J. Ollier; S. Pietri; Zs. Podolyak; G. Pollarolo; F. Recchia; E. Sahin; F. Scarlassara; R. Silvestri; J. F. Smith; K. -M. Spohr; S. J. Steer; A. M. Stefanini; S. Szilner; N. J. Thompson; G. M. Tveten; C. A. Ur; J. J. Valiente-Dobon; V. Werner; S. J. Williams; F. R. Xu; J. Y. Zhu
• Department/s: Nuclear physics
• Publishing year: 2010
• Language: English
• Publication/Series: Physical Review C (Nuclear Physics)
• Volume: 81
• Issue: 3
• Links: http://dx.doi.org/10.1103/PhysRevC.81.034310
• Document type: Journal article
• Publisher: American Physical Society
• Topic: Subatomic Physics
• Status: Published
• ISBN/ISSN/Other: ISSN: 0556-2813