Precision spectroscopy of positronium: Testing bound-state QED theory and the search for physics beyond the Standard Model
Positronium (Ps) is an exotic hydrogenic atom composed of an electron bound to a positron
via the Coulomb force. Being composed of two low-mass leptons, positronium is, for all …
via the Coulomb force. Being composed of two low-mass leptons, positronium is, for all …
Precision Microwave Spectroscopy of the Positronium Fine Structure
We report a new measurement of the positronium (Ps) 2 S 3 1→ 2 P 3 0 interval. Slow Ps
atoms, optically excited to the radiatively metastable 2 S 3 1 level, flew through a microwave …
atoms, optically excited to the radiatively metastable 2 S 3 1 level, flew through a microwave …
Measurement of the fluorescence decay rate of positronium
RJ Daly, RE Sheldon, DB Cassidy - Physical Review A, 2024 - APS
The fluorescence decay rate of 2 PJ 3 positronium (Ps) atoms [Γ fl] has been experimentally
determined using a Stark-mixing technique. Ground-state Ps atoms were optically excited in …
determined using a Stark-mixing technique. Ground-state Ps atoms were optically excited in …
Generation of a bunched positron beam extracted nonadiabatically from a buffer-gas trap and focused in a free field region
L Povolo, S Mariazzi, L Penasa, R Caravita… - … Review Accelerators and …, 2023 - APS
Advanced spectroscopy experiments and new physics experiments with positronium atoms
in vacuum will benefit from positronium production in an environment free of magnetic and …
in vacuum will benefit from positronium production in an environment free of magnetic and …