10 citations · 24 across the 12 of their papers we have counts for
12 papers
The parity-violating asymmetry including QED corrections in high-energy electron-nucleus collisions
Xavier Roca-Maza, D. H. Jakubassa-Amundsen
The parity-violating asymmetry, accounting for the vector and axial-vector vertex plus self-energy correction as well as for vacuum polarization, is calculated nonperturbatively by…
The Electron-Gamma Coincidence Setup DAGOBERT
B. Hesbacher, G. Steinhilber, J. Isaak +9
The QCLAM electron spectrometer at the S-DALINAC electron accelerator at Technische Universität Darmstadt has been extended by the DAGOBERT -detector array consisting of fast ti…
QED corrections to the parity-violating asymmetry in high-energy electron-nucleus collisions
Xavier Roca-Maza, D H. Jakubassa-Amundsen
The parity-violating asymmetry, including leading-order QED corrections to the Coulomb potential, is calculated non-perturbatively by solving the Dirac equation. At GeV collision e…
Radiative corrections to the spin asymmetry in elastic polarized electron-nucleus collisions at high energy
D. H. Jakubassa-Amundsen
Modifying the numerical codes, dispersion corrections to the beam-normal spin asymmetry which arise from low-lying transient nuclear excitations up to 30 MeV, are estimated for col…
Dispersion effects in elastic electron scattering from Pb
D. H. Jakubassa-Amundsen, X. Roca-Maza
Dispersion corrections to elastic electron scattering from Pb at energies up to 150 MeV are estimated within the second-order Born approximation. All strong transient nucle…
Advances in bremsstrahlung: a review
D. H. Jakubassa-Amundsen
Recent developments in bremsstrahlung from electrons colliding with atoms and nuclei at energies between 0.1 MeV and 500 MeV are reviewed. Considered are cross sections differentia…
On the excitation of the state in C in the reaction
D. H. Jakubassa-Amundsen, V. Yu. Ponomarev
The excitation of the carbon state at 4.439 MeV by MeV electron impact and its subsequent decay to the ground state by photon emission is described within the distor…
Excitation of the electric pygmy dipole resonance by inelastic electron scattering
V. Yu. Ponomarev, D. H. Jakubassa-Amundsen, A. Richter +1
To complete earlier studies of the properties of the electric pygmy dipole resonance (PDR) obtained in various nuclear reactions, the excitation of the 1 states in Ce b…
Numerical test of polarization sum rules for the triply differential bremsstrahlung cross section in electron-nucleus encounters
D. H. Jakubassa-Amundsen
Inspired by the work of Pratt and coworkers on a sum rule for the polarization correlations in electron bremsstrahlung when the outgoing electron is not observed, we derive the cor…
The influence of vacuum polarization on the Sherman function during elastic electron-nucleus scattering
D. H. Jakubassa-Amundsen
The change of the transverse spin asymmetry in the scattering of highly-relativistic spin-polarized electrons from nuclei by vacuum polarization effects is calculated within the Ue…
The ground state of relativistic ions in the limit of high magnetic fields
D. H. Jakubassa-Amundsen
We consider the pseudorelativistic no-pair Brown-Ravenhall operator for the description of relativistic one-electron ions in a homogeneous magnetic field B. It is shown for central…
Heat kernel estimates and spectral properties of a pseudorelativistic operator with magnetic field
D. H. Jakubassa-Amundsen
Based on the Mehler heat kernel of the Schroedinger operator for a free electron in a constant magnetic field an estimate for the kernel of E_A is derived, where E_A represents the…