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München 2019 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 49: Structure and Dynamics of Nuclei IX

HK 49.7: Vortrag

Donnerstag, 21. März 2019, 15:45–16:00, HS 14

Lifetime measurement on 177Hf using the EXILL&FATIMA spectrometer — •Lukas Knafla1, Jean-Marc Régis1, Jan Jolie1, Ulli Köster2, Gabriela Thiamova3, and Petr Alexa4 for the EXILL-FATIMA collaboration — 1Institut für Kernphysik, Universität zu Köln — 2Institut Laue-Langevin, Grenoble — 3LPSC Grenoble — 4VŠB-Technical University of Ostrava


Lifetimes of high spin states in the odd-A nucleus 177Hf were measured using the EXILL&FATIMA spectrometer equiped with eight HPGe-clover detectors and 16 fast-timing LaBr3(Ce) detectors [1]. For the determination of lifetimes in the pico- to nanosecond regime, the well established Generalized Centroid Difference (GCD) method was used [2]. Lifetimes of ten states were measured including seven lifetimes that were determined for the first time. From these lifetimes reduced transition probabilities were extracted and compared to particle-rotor model (PRM) calculations and quasiparticle-phonon model (QPM) calculations.
[1] J.-M. Régis et al., Nucl. Instrum. Methods Phys. Res. A 763 (2014)
[2] J.-M. Régis et al., Nucl. Instrum. Methods Phys. Res. A 726 (2013)

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