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Q: Fachverband Quantenoptik und Photonik

Q 70: Precision spectroscopy of atoms and ions IV (joint session A/Q)

Q 70.1: Hauptvortrag

Freitag, 18. März 2022, 10:30–11:00, A-H2

High-resolution DR spectroscopy with slow cooled Be-like Pb⁷⁸⁺ ions in the CRYRING@ESR storage ring — •Sebastian Fuchs^1,2, Carsten Brandau^1,3, Esther Menz^3,4,5, Michael Lestinsky³, Alexander Borovik Jr¹, Yanning Zhang⁶, Zoran Andelkovic³, Frank Herfurth², Christophor Kozhuharov³, Claude Krantz³, Uwe Spillmann³, Markus Steck³, Gleb Vorobyev³, Regina Heß³, Volker Hannen⁷, Dariusz Banaś⁸, Michael Fogle⁹, Stephan Fritzsche^4,5, Eva Lindroth¹⁰, Xinwen Ma¹¹, Alfred Müller¹, Reinhold Schuch¹⁰, Andrey Surzhykov^12,13, Martino Trassinelli¹⁴, Thomas Stöhlker^3,4,5, Zoltán Harman¹⁵, and Stefan Schippers^1,2 — ¹JLU Gießen — ²HFHF Campus Gießen — ³GSI — ⁴HI Jena — ⁵FSU Jena — ⁶Xi’an Jiaotong University — ⁷WWU Münster — ⁸JKU Kielce — ⁹Auburn University — ¹⁰Stockholm University — ¹¹IMPCAS Lanzhou — ¹²TU Braunschweig — ¹³PTB — ¹⁴UPMC Paris — ¹⁵MPIK

Dielectronic recombination (DR) collision spectroscopy is a very successful tool for studying the properties of ions. Due to its versatility and the high experimental precision, DR spectroscopy plays an important role in the physics program of the SPARC collaboration. CRYRING@ESR is particularly attractive for DR studies, since its electron cooler provides an ultra-cold electron beam promising highest experimental resolving power. Here, we report on the first DR experiment with highly charged ions in the heavy-ion storage ring CRYRING@ESR of the international FAIR facility in Darmstadt. The recent results are well in accord with our expectations and the theory.