International Conference on Precision Physics of Simple Atomic Systems

Session

Session 5

19 May 2026, 09:00

Festsaal (ÖAW)

1. New Physics Searches with Exotic Atoms and Microcalorimeters

Ben Ohayon (Technion IIT)

19/05/2026, 09:00

Invited Talk

Compact exotic atoms involve replacing one or more electrons with negative exotic particles, such as muons or antiprotons. Contact-full transitions, i.e., those that involve an "s" state, are useful for measuring nuclear radii and QCD contact terms. On the other hand, contact-free transitions allow for comparisons of experiment and theory largely free from difficult-to-calculate nuclear...

84. Resolving the fine-structure puzzle in muonic atoms

Natalia S. Oreshkina (MPIK (Heidelberg))

19/05/2026, 09:40

Talk

Nuclear root-mean-square are fundamental benchmarks bridging various fields of physics. They serves as indispensable input parameters for nuclear-, atomic-, and molecular-physics calculations. Reliable rms radii are crucial for precision tests of quantum electrodynamics, for the determination of fundamental constants, and for many searches for physics beyond the Standard Model. There are two...

19. Energy levels of multiscale bound states from QED energy-momentum trace

Prof. Michael Eides (University of Kentucky)

19/05/2026, 10:10

Talk

Energy levels of QED bound states, which depend on a number of independent mass parameters, can be calculated as matrix elements of the QED energy-momentum trace. As an example of such system we consider muonic hydrogen. The leading one-loop corrections to its energy levels depend on the electron and muon masses. These corrections are calculated as matrix elements of the energy-momentum trace....