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Towards a search for Dark Matter using atomic Dysprosium
A. Sharma a,b, M. Leyser a,b, A. V. Viatkina a,b, L. Bougas a,b and D. Budker a,b
a Helmholtz Institut Mainz (HIM), Johannes Gutenberg Universitat, Mainz 55128, Germany
b Institut fur Physik, Johannes Gutenberg Universitat, Mainz 55128, Germany
Studies of rotation curves of galaxies, initiated by Oort & Zwicky (1930’s) and...
In diatomic systems, the rich and varied spectra and nearly degenerate energy levels provide huge enhancements for tiny physical effects, making it possible to look for new physics beyond the Standard Model in a single experiment. Nuclear-spin dependent parity-violating interactions and nuclear-anapole-moment effects in diatomic molecules in particular provide precise test of the electroweak...
abstract provided as attached pdf-file
ALPHATRAP is a high-precision Penning-trap based experiment dedicated to the exploration of ground-state properties of heavy, highly charged ions (HCI). The major goal of ALPHATRAP is the measurement of the bound-electron gyromagnetic factor, or $\textit{g}$-factor, which can be predicted to very high precision in the framework of bound-state quantum electrodynamics (BS-QED). The comparison of...
for abstract see attached pdf-file
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for abstract see attached pdf-file.
The 1S-2S two-photon transition frequency in hydrogen can be measured most accurately compared to other transitions in hydrogen due to its narrow natural linewidth, and serves as a corner stone for fundamental constants. However, only a combination of the precisely known 1S-2S transition with additional measurements allows to extract specific constants such as the proton root mean square...
abstract provided as attached pdf-file
For abstract please see the attached pdf.
Please see the attached pdf file for the abstract.
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We critically examine the current status of theoretical calculations of the energies and the isotope shift of the lowest-lying states of helium, searching for unresolved discrepancies with experiments. Calculations are performed within the nonrelativistic quantum electrodynamics ex- pansion in powers of the fine structure constant α and the electron-to-nucleus mass ratio m/M. For energies,...