Speaker
Aleksandr Pustyntsev
(Johannes Gutenberg University of Mainz)
Description
Various extensions of the Standard Model give rise to BSM particles with masses in the MeV to sub-GeV range. Such particles are often associated with dark matter, the strong CP problem and the $\left(g-2\right)_{\mu}$ anomaly. In this work, we examine the experimental constraints on such particles that can be derived from near-future high-precision experiments, including the MESA facility and the JLab program utilizing polarized positrons, alongside recent measurements of $\left(g-2\right)_l$. Special focus is placed on lepton couplings, which remain weakly constrained within this mass range.
Authors
Aleksandr Pustyntsev
(Johannes Gutenberg University of Mainz)
Marc Vanderhaeghen
(University Mainz)
