Nuclear shape transition in light gold isotopes

Shape Coexistence in Light Krypton Isotopes

Sudden change in the nuclear charge distribution of very light gold isotopes.

On-line resonance-ionization mass spectrometry has been applied to determine the isotope shift and hyperfine structure of 185189Au and 189Aum in the 6s 2S 1/ 2 6p 2Pl/2 (A =268 nm) transition. The Au atoms were obtained as daughters of mass-separated Hg isotopes produced at the ISOLDE facility at CERN ionized by a three-color, two-step resonant photoionization process, detected and n1ass select...

Oblate-prolate transition in odd-mass light mercury isotopes

Anomalous isotope shifts in the chain of light Hg isotopes are investigated by using the Hartree-FockBogoliubov method with the Skyrme SIII, SkI3 and SLy4 forces. The sharp increase in the mean-square radius of the odd mass Hg isotopes is well explained in terms of the transition from an oblate to a prolate shape in the ground state of these isotopes. We discuss the polarization energy of time-...

EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH CERN-EP/98-183 16 November 1998 SHAPE COEXISTENCE IN THE LIGHT PO ISOTOPES

The systematics of the even light Po isotopes (N 126) are studied in the framework of the Particle-Core Model. The strong perturbation of the systematics in the very light isotopes is interpreted as arising from the interaction between regular and intruder structures. Results of Potential Energy Surface (PES) calculations and predictions of the Pairing Vibration Model support this interpretatio...

Shape evolution in neutron-rich osmium isotopes

N. Al-Dahan,1,2 P. H. Regan,2,* Zs. Podolyák,2 P. M. Walker,2 N. Alkhomashi,3 G. D. Dracoulis,4 G. Farrelly,2 J. Benlliure,5 S. B. Pietri,2,6 R. F. Casten,7 P. D. Stevenson,2 W. Gelletly,2 S. J. Steer,2 A. B. Garnsworthy,2,8 E. Casarejos,5,9 J. Gerl,6 H. J. Wollersheim,6 J. Grebosz,10 M. Górska,6 I. Kojouharov,6 H. Schaffner,6 A. Algora,11,12 G. Benzoni,13 A. Blazhev,14 P. Boutachkov,6 A. M. Br...