Mainz 2022 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 8: Structure and Dynamics of Nuclei II
HK 8.4: Talk
Monday, March 28, 2022, 14:45–15:00, HK-H7
Spectroscopy of 94Pd — •Aleksandrina Yaneva for the DESPEC-S480 collaboration — GSI Helmholzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany — IKP, Univerity of Cologne, Cologne, Germany
In March 2020 the first formally approved DESPEC experiment (part of the FAIR phase-0 campaign) was performed at GSI Helmholtzzentrium für Schwerionenforschung. This experiment was focused on the measurement of electromagnetic transition rates between yrast excited states in the 94Pd nucleus. The goal was to measure the lifetimes of the Iπ=6+ and 8+ states in this N=Z+2 isotope, which would provide insight into the evolution of the wave function around the 100Sn region.
The nuclei of interest were produced, identified and transported through the Fragment Separator to be implanted into the AIDA (Advanced Implantation Detector Array) active stopper. AIDA was surrounded by the FATIMA (LaBr3) and GALILEO (HPGe) detector arrays, which provided the fast-timing and precise energy information respectively.
The data obtained from the measurements is currently being analyzed by looking for correlations between ion implantation in AIDA and isomeric decays in FATIMA. In order to measure isomeric lifetimes in FATIMA the prompt response of the detectors has been determined. Similarly precise energy and timing information are being extracted after proper calibration and drift corrections. I will present the current analysis status of the experimental data.