911 citations
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33 papers · 1 filter
On the existence of effective potentials in time-dependent density functional theory
M. Ruggenthaler, M. Penz, D. Bauer
We investigate the existence and properties of effective potentials in time-dependent density functional theory. We outline conditions for a general solution of the corresponding S…
Relativistic (Z alpha)^2-Corrections and Leading Quantum Electrodynamic Corrections to the Two-Photon Decay Rate of Ionic States
B. J. Wundt, U. D. Jentschura
We calculate the relativistic corrections of relative order (Z alpha)^2$ to the two-photon decay rate of higher excited S and D states in ionic atomic systems, and we also evaluate…
Detection of Gamma Rays From a Starburst Galaxy
The HESS Collaboration, F. Acero
Starburst galaxies exhibit in their central regions a highly increased rate of supernovae, the remnants of which are thought to accelerate energetic cosmic rays up to energies of ~…
Non-Abelian Discrete Groups from the Breaking of Continuous Flavor Symmetries
A. Adulpravitchai, A. Blum, M. Lindner
We discuss the possibility of obtaining a non-abelian discrete flavor symmetry from an underlying continuous, possibly gauged, flavor symmetry SU(2) or SU(3) through spontaneous sy…
Penning trap mass measurements on (99-109)$Cd with ISOLTRAP and implications on the rp process
M. Breitenfeldt, G. Audi, D. Beck +13
Penning trap mass measurements on neutron-deficient Cd isotopes (99-109)Cd have been performed with the ISOLTRAP mass spectrometer at ISOLDE/CERN, all with relative mass uncertaint…
Few-Photon Electron-Positron Pair Creation by Relativistic Muon Impact on Intense Laser Beams
Sarah J. Müller, Carsten Müller
Electron-positron pair production in combined laser and Coulomb fields is studied. To this end, the Feynman diagram for multiphoton pair creation by muon impact on a circularly pol…