Mainz 2017 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 9: Precision Spectroscopy II

A 9.7: Vortrag

Montag, 6. März 2017, 18:30–18:45, N 3

The first ionization potential of nobelium — •Premaditya Chhetri^1,2, Dieter Ackermann^2,3, Hartmut Backe⁴, Michael Block^2,4,5, Bradley Cheal⁶, Christian Droese⁷, Christoph Emanuel Düllmann^2,4,5, Julia Even⁸, Rafael Ferrer⁹, Francesca Giacoppo^2,5, Stefan Götz^2,4,5, Fritz Peter Heßberger^2,5, Oliver Kaleja^2,4, Jadambaa Khuyagbaatar^2,5, Peter Kunz¹⁰, Mustapha Laatiaoui^2,5, Felix Lautenschläger^1,2, Werner Lauth⁴, Lotte Lens^2,4, Nathalie Lecesne³, Andrew Kishor Mistry^2,5, Sebastian Raeder^2,5, Enrique Minaya Ramirez¹¹, Thomas Walther¹, Alexander Yakushev², and Zhiyuan Zhang¹² — ¹TU Darmstadt — ²GSI — ³GANIL — ⁴Universität Mainz — ⁵Helmholtz-Institut Mainz — ⁶University of Liverpool — ⁷Universität Greifswald — ⁸KVI-CART — ⁹KU-Leuven — ¹⁰TRIUMF — ¹¹IPN Orsay — ¹²IMP Lanzhou

Precision measurements of optical transitions of the heaviest elements can be used to test state-of-the-art atomic calculations which include relativistic effects and electron correlations, both affecting physical and chemical properties of these elements. Only recently, the first optical spectroscopy of element nobelium (Z=102) was reported [1], making use of the sensitive Radiation Detected Resonance Ionization Spectroscopy (RADRIS) technique. Several high lying Rydberg states were observed enabling the extraction of the first ionization potential of nobelium. In this talk, a report on the recent achievements in the RADRIS measurements on nobelium will be presented.

[1] M. Laatiaoui et al., Nature 538, 495-498 (2016)