Innershell Photodetachment of Atomic and Molecular Ions at PETRA IIIHYBRID

Intense photon beams from the brightest 3rd generation synchrotron radiation sources facilitate novel studies of the interaction of x-ray light with ionized matter in the gas phase. In the past decade, this potential has been successfully exploited at the Photon-Ion end-station at PEtra III (PIPE) for detailed investigations of inner-shell ionization and the ensuing deexciation processes in atomic and molecular ions. In my talk, I will provide an introduction to the physics of negative ions as well as to the photon-ion merged beams technique and then focus on recent results obtained with atomic C⁻ and molecular C₂⁻ ion beams [1,2].

[1] "Multiple photodetachment of carbon anions via single and double core-hole creation",
A. Perry-Sassmannshausen, T. Buhr, A. Borovik Jr., M. Martins, S. Reinwardt, S. Ricz, S. O. Stock, F. Trinter, A. Müller, S. Fritzsche, and S. Schippers
Phys. Rev. Lett. 124 (2020) 083203 (Editors' Suggestion)

[2] Vibrationally resolved inner-shell photoexcitation of the molecular anion C₂⁻
S. Schippers, P.-M. Hillenbrand, A. Perry-Sassmannshausen, T. Buhr, S. Fuchs, S. Reinwardt, F. Trinter, A. Müller, and M. Martins
ChemPhysChem 24 (2023) e202300061 (Cover feature ChemPhysChem 11/2023)

https://gsi-fair.zoom.us/j/63856816325
Meeting-ID: 638 5681 6325
Passcode: AP_Seminar
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