papers

Publications (5)

physics.atom-ph2024

Role of the Coulomb Potential in Compton Scattering

N. Melzer, M. Kircher, A. Pier +18

We report a fully differential study of ionization of the Ne L-shell by Compton scattering of 20 keV photons. We find two physical mechanisms which modify the Compton-electron emis…

physics.atom-ph2021

Photon-momentum-induced molecular dynamics in photoionization of N at keV

M. Kircher, J. Rist, F. Trinter +16

We investigate K-shell ionization of N at 40 keV photon energy. Using a COLTRIMS reaction microscope we determine the vector momenta of the photoelectron, the Auger electron an…

physics.atom-ph2025

Selective Bond Breaking in CO Induced by Photoelectron Recoil

J. Weiherer, N. Melzer, M. Kircher +16

After core-ionization of CO, typically an Auger-Meitner decay takes place, leading to the formation of a dicationic molecule that may dissociate into CO and O. We demon…

physics.atm-clus2018

Breakdown of the spectator concept in low-electron-energy resonant decay processes

A. Mhamdi, J. Rist, D. Aslitürk +16

We suggest that low energy electrons, released by resonant decay processes, experience substantial scattering on the electron density of excited electrons, which remain a spectator…

physics.atom-ph2021

Recoil-Induced Asymmetry of Nondipole Molecular Frame Photoelectron Angular Distributions in the Hard X-ray Regime

M. Kircher, J. Rist, F. Trinter +15

We investigate angular emission distributions of the 1s-photoelectrons of N ionized by linearly polarized synchrotron radiation at keV. As expected, nondipole contrib…