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Mainz 2017 – scientific programme

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A: Fachverband Atomphysik

A 9: Precision Spectroscopy II

A 9.7: Talk

Monday, March 6, 2017, 18:30–18:45, N 3

The first ionization potential of nobelium — •Premaditya Chhetri1,2, Dieter Ackermann2,3, Hartmut Backe4, Michael Block2,4,5, Bradley Cheal6, Christian Droese7, Christoph Emanuel Düllmann2,4,5, Julia Even8, Rafael Ferrer9, Francesca Giacoppo2,5, Stefan Götz2,4,5, Fritz Peter Heßberger2,5, Oliver Kaleja2,4, Jadambaa Khuyagbaatar2,5, Peter Kunz10, Mustapha Laatiaoui2,5, Felix Lautenschläger1,2, Werner Lauth4, Lotte Lens2,4, Nathalie Lecesne3, Andrew Kishor Mistry2,5, Sebastian Raeder2,5, Enrique Minaya Ramirez11, Thomas Walther1, Alexander Yakushev2, and Zhiyuan Zhang121TU 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)

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