We are happy to share our latest work:
Probing arbitrary polarized photon pairs undergoing double Compton scatterings by a dedicated MC simulator validated with experimental data.
Polarization correlations in two-photon systems are fundamental to our understanding of quantum mechanics. However, for high-energy photons (beyond the optical regime), measurement remains challenging, only partial information can be obtained through Compton scattering techniques. Monte Carlo simulations offer a powerful way to explore these processes, modeling both photon production and the effects that distort the observed signals.
Together with our colleagues from University of Vienna and Jagiellonian University, we developed the Vienna-Warsaw Monte Carlo model capable of simulating polarization correlations of high-energy photon pairs, such as those produced in positronium decays.
- The model was validated with high-statistics experimental data, showing excellent agreement between simulated and measured angular correlation spectra.
- The extracted visibility factors follow theoretical expectations, confirming that the VW model accurately captures the physics of polarization correlations in high-energy photon systems.
- Our findings suggest that environmental effects contribute less to the apparent visibility reduction than previously assumed. This work lays a foundation for a Geant4-based, experimentally validated simulator, which we are now extending for novel industrial tomography applications. We plan to release this dedicated simulation tool to the community soon, to support development of novel imaging algorithms in both industrial and medical tomography.
🔗 Read the full article in European Physical Journal C:
https://epjc.epj.org/articles/epjc/abs/2025/10/10052_2025_Article_14862/10052_2025_Article_14862.html