Parts | Days | Selection | Search | Updates | Downloads | Help
HK: Fachverband Physik der Hadronen und Kerne
HK 30: Structure and Dynamics of Nuclei VII
HK 30.4: Talk
Tuesday, March 12, 2024, 18:30–18:45, HBR 19: C 5b
Lifetime measurements of excited states in the doubly magic nucleus 40Ca using the Doppler-Shift-Attenuation-Method — •Timon Sültenfuß, Maximilian Droste, Peter Reiter, Anna Bohn, Ramona Burggraf, Hannah Kleis, and Sarah Prill — Institute for Nuclear Physics, University of Cologne
Lifetimes of excited states in the doubly magic nucleus 40Ca were measured at the FN tandem accelerator of the University of Cologne. Excited states were populated using a 40Ca(p, p’ γ) reaction at a beam energy of 15 MeV. The detector array SONIC@HORUS, consisting of 12 silicon and 14 HPGe detectors, was used to detect scattered protons and emitted γ-rays in coincidence. Lifetimes of yrast states in 40Ca have been determined using the Doppler-Shift-Attenuation Method. To perform a lineshape analysis the APCAD code [1] was employed. The resulting new lifetimes reduce the experimental uncertainty significantly with respect to the evaluated lifetimes. Comparison of the new lifetime values with shell-model calculations will be discussed.
[1] C. Stahl et al., Comput. Phys. Commun. 214 (2017) 174-198
Keywords: lifetime measurment; DSAM; 40Ca; SONIC@HORUS