International Conference on Precision Physics of Simple Atomic Systems

Session

Session 9

20 May 2026, 09:00

Festsaal (ÖAW)

70. Charge radii of the lightest nuclei from muonic atom spectroscopy

Randolf Pohl

20/05/2026, 09:00

Talk

In muonic atoms, a single muon replaces all of the atomic electrons, resulting in a 2-body system whose hydrogen-like theory is very well understood. The large muon mass of 200 times the electron mass results in a 200^3 = 10 million fold improved sensitivity of muonic-atom energy levels to nuclear structure.

Using laser spectroscopy, we have investigated the charge radii of Z=1 and 2 (H to...

6. PBARSPECTR: energy levels of antiprotonic and muonic atoms

Vojtěch Patkóš (Charles University)

20/05/2026, 09:30

Talk

Light two-body systems such as hydrogen, muonic hydrogen, or muonium are the most viable candidates for tests of the Standard Model of fundamental interactions at low energies. It is because these simple systems allow for highly accurate theoretical predictions. Therefore, from the comparison of theory with precise experimental data we are able to search for new physics and to determine values...

2. Strong-field QED via precision spectroscopy of antiprotonic atoms

Michael Roosa (Laboratoire Kastler Brossel)

20/05/2026, 10:00

Talk

From dark matter and dark energy, to neutrino oscillations and the lack of antimatter in the universe, there is growing evidence that the Standard Model is incomplete. Tests of Quantum Electrodynamics (QED) with few-electron systems offer a promising avenue for looking for new physics, as QED is the best understood quantum field theory and extremely precise predictions can be obtained for...