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Bonn 2020 – wissenschaftliches Programm

Die DPG-Frühjahrstagung in Bonn musste abgesagt werden! Lesen Sie mehr ...

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HK: Fachverband Physik der Hadronen und Kerne

HK 45: Structure and Dynamics of Nuclei VIII

HK 45.4: Vortrag

Donnerstag, 2. April 2020, 15:00–15:15, J-HS E

Nuclear structure study in 138Ce via γ-γ fast-timing — •Kerstin Schomacker, Jean-Marc Regis, Vasil Karayonchev, and Jan Jolie — Institut für Kernphysik, Universität zu Köln, Zülpicherstr.77, 50937 Köln, Germany

Good agreement between shell model calculated and experimental level scheme from 138Ce up to the 10+ state [1] motivated the measurement of transition strengths for the 6+, 8+ and 10+ level decays in this nucleus. This was done by lifetime measurements via the γ-γ fast-timing technique.

Excited states of 138Ce were populated in a fusion-evaporation reaction at the FN Tandem Accelerator at the Institute für Kernphysik at the Universität zu Köln. Accurate results were obtained by investigating triple gamma cascades using HPGe-LaBr(Ce)-LaBr(Ce) coincidences. The deduced transition strengths are compared with shell-model calculations.

[1] T. Alharbi et al., Phys. Rev. C 87, 014323 (2013)

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