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Q: Fachverband Quantenoptik und Photonik

Q 21: Precision Spectroscopy of Atoms and Ions II (with A)

Q 21.2: Vortrag

Dienstag, 24. März 2015, 11:30–11:45, M/HS1

Laser spectroscopy of the heaviest elements at GSI — •Premaditya Chhetri¹, MIchael Block^2,3, Harmut Backe⁴, Peter Kunz⁵, Fritz-Peter Heßberger^2,3, Mustapha Laatiaoui², Werner Lauth⁴, Felix Lautenschläger¹, Sebastian Raeder⁷, Thomas Walther¹, and Calvin Wraith⁶ — ¹TU Darmstadt, Darmstadt — ²Helmholtzinstitut Mainz, Mainz — ³GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt — ⁴JGU Mainz, Mainz — ⁵TRIUMF, Vancouver, Canada — ⁶University of Liverpool, Liverpool, United Kindom — ⁷KU Leuven, Leuven, Belgium

Laser spectroscopy of the heaviest elements allows the study of the evolution of relativistic effects on their atomic structure. In addition, nuclear properties such as spins and nuclear moments can be obtained. In our experiments at the GSI we exploit the Radiation Detected Resonance Ionization Spectroscopy in a buffer-gas filled stopping cell and use a two step photoionization process to search for the ¹P₁ level in ²⁵⁴No. Yb, a chemical homolog of No, can be produced at a higher rate and is used for optimizing the system. In this talk a general overview of our experimental setup and some results from a recent online experiment on ¹⁵⁵Yb will be presented.