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HK: Fachverband Physik der Hadronen und Kerne

HK 42: Structure and Dynamics of Nuclei IX

HK 42.6: Vortrag

Mittwoch, 13. März 2024, 17:00–17:15, HBR 19: C 5b

Collinear Laser Spectroscopy of ^{155 − 175}Tm⁺ — •Hendrik Bodnar¹, Kristian König¹, Klaus Blaum⁶, Andrey Bondarev⁵, Bradley Cheal³, Tim Lellinger², Edward Matthews², Patrick Müller¹, Gerda Neyens⁷, Wilfried Nörtershäuser¹, Julian Palmes¹, Peter Plattner⁶, Laura Renth¹, Liss Vázquez Rodríguez², and Deyan Yordanov⁴ — ¹Institut für Kernphysik, TU Darmstadt, Darmstadt, Germany — ²Experimental Physics Department, CERN, Geneva, Switzerland — ³Oliver Lodge Laboratory, University of Liverpool, Liverpool, UK — ⁴Universite Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France — ⁵Helmholtz Institute Jena, Jena, Germany — ⁶Max-Planck-Institut für Kernphysik, Heidelberg, Germany — ⁷Instituuut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium

Collinear Laser Spectroscopy of ^155−175Tm⁺ was performed at COLLAPS/ISOLDE (CERN). Through measurements of the isotopic shifts and the hyperfine splitting, the magnetic dipole moments, electrical quadrupole moments, nuclear spin and charge radii relative to the stable ¹⁶⁹Tm were determined. ¹⁶⁹Tm was previously investigated in detail at the high-precision setup COALA at TU Darmstadt to identify suitable transitions for the online campaign. Results from both parts of the experiments are presented. The ultimate goal is the determination of the charge radius of the proton emitter ¹⁴⁷Tm since charge radii of nuclei exhibiting this decay channel have not been performed so far. Funding from the BMBF under contracts 05P21RDCI1 and 05P21RDFN1 is acknowledged.