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Bochum 2009 – wissenschaftliches Programm

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HK: Fachverband Hadronen und Kerne

HK 48: Nuclear Structure and Dynamics I

HK 48.3: Vortrag

Mittwoch, 18. März 2009, 14:30–14:45, H-ZO 40

Determination of absolute transition probabilities in 128Xe via projectile Coulomb excitation — •M. Hackstein1, A. Dewald1, W. Rother1, Th. Pissulla1, H. Iwasaki1, D. Mücher1, N. Warr1, A. Blazhev1, J. Jolie1, K.-O. Zell1, and S. Harissopulos21IKP Köln, Germany — 2INP, NCSR, Demokritos, Athens, Greece

Recently, lifetimes of low-lying excited states in 128Xe were measured using the plunger technique after projectile Coulomb excitation. This experiment was performed at the JYFL, Jyväskylä using the JUROGAM Ge-detector array and the Cologne coincidence plunger device equipped with an array of 32 small Si-detectors. The Si-detectors were used to measure the reaction kinematics by registering target-like nuclei scattered in forward direction. In order to cross-check the results obtained from the recoil distance Doppler shift analysis an evaluation of the measured excitation cross-sections was performed with the computer code GOSIA. In addition deorientation effects were investigated and effort was made to extract absolute quadrupole moments. Details of the experiment and the calculations will be presented. The obtained results will be discussed. Supported by: DFG, contr.n. DE1516/1.

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