Mainz 2012 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
HK: Fachverband Physik der Hadronen und Kerne
HK 43: Struktur und Dynamik von Kernen
HK 43.5: Talk
Thursday, March 22, 2012, 17:45–18:00, P 4
Probing the Quadrupole Collectivity of 128Cd using Coulomb Excitation — •Sabine Bönig, Thorsten Kröll, Marcus Scheck, and Michael Thürauf — Technische Universität Darmstadt
128Cd is only two proton and two neutron holes away from the doubly magic nucleus 132Sn. The excitation energy of the first excited 2+-state decreases when approaching the neutron shell closure. This unexpected behaviour makes this nucleus interesting for investigation. So far, contradicting theoretical predictions for the B(E2,0+→ 2+) value of 128Cd exist. While shell model calculations conclude an almost spherical shape of 128Cd, beyond mean field calculations predict an already considerable quadrupole collectivity. In this contribution the experimental details of the Coulomb excitation of 128Cd at REX-ISOLDE, investigated with MINIBALL (experiment IS477), will be presented. Furthermore the current status of the analysis to determine the transition strength of the ground state into the first excited 2+ state will be shown. This project is supported by BMBF (No. 06 DA 9036I), HIC for FAIR and EU through ENSAR (No. 262010).