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HK: Fachverband Physik der Hadronen und Kerne
HK 65: Structure and Dynamics of Nuclei XII
HK 65.2: Talk
Thursday, March 14, 2024, 16:15–16:30, HBR 19: C 5a
Evolution of the quadrupole moment of Cd and Sn nuclei — •Pawan Kumar1,2, Gabriel Martinez-Pinedo2,1, and Paul-Gerhard Reinhard3 — 1Institut für Kernphysik (Theoriezentrum), Fachbereich Physik, Technische Universität Darmstadt, Darmstadt 64298, Germany — 2GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt 64291, Germany — 3Institut für Theoretische Physik II, Universität Erlangen, Erlangen 91058, Germany
The nuclear quadrupole moment is one of the important properties of nuclei. It is taken as a measure of the deviation of nuclear shape from sphericity. While extensive studies by both theorists and experimentalists have been conducted on the nuclear quadrupole moment over the years, its understanding at one aspect has remained elusive: why does the value of the quadrupole moment change in an isotopic chain while the number of protons remains constant? To address this question, we have conducted a theoretical investigation based on the shell model and nuclear density functional theory. Applying these complementary models to the 11/2− and 3/2+ states of neutron-rich Cd and Sn nuclei, our investigation reveals that the evolution of the nuclear quadrupole moment in these isotopic chains is a consequence of neutron-induced polarization, which varies with neutron number.
This research is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Project number 448588010.