Darmstadt 2016 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 13: Structure and Dynamics of Nuclei IV
HK 13.4: Vortrag
Montag, 14. März 2016, 17:30–17:45, S1/01 A04
Quadrupole collectivity in 138,140,142Xe — •Corinna Henrich, Thorsten Kroell, and Stoyanka Ilieva for the IS411 and EXILL-FATIMA collaboration — Institut für Kernphysik, TU Darmstadt, Germany
The region around the doubly magic nucleus 132Sn is of special interest as both single-particle and mean-field approaches can be applied by theory. In order to gain further understanding on the nuclear structure in this region, a ’safe’ Coulomb excitation experiment was carried out at REX-ISOLDE (CERN, Geneva) using the MINIBALL spectrometer (IS411 campaign). As only a small center-of-mass range on the particle detector was accessible, the sensitivity on the quadrupole moments of the first 2+ and 4+ state using just that data is relatively small. Therefore, additional information provided by the direct lifetime measurement at ILL (Grenoble, France) using the EXILL&FATIMA spectrometer was crucial for the analysis. The final results of the analysis along with a comparison to predictions of several theoretical models is presented.
Supported by BMBF under contracts 06DA9036I, 05P12RDCIA and 05P15RDCIA, by the EU under contracts EURONS 506065 and ENSAR 262010, by ILL and by HIC for FAIR.