| Sunday 24 August 2025 | |
| Events for day: Wednesday 16 July 2025 |
| 11:00 - 12:00 Wednesday Weekly Seminar - Hybrid Format Cosmic birefringence as a probe of the nature of dark matter School PARTICLES AND ACCELERATORS Abstract: Understanding the fundamental nature of dark matter remains one of the most profound challenges in modern physics. In this talk, I will present how cosmic birefringence—the rotation of the polarization plane of Cosmic Microwave Background (CMB) photons—can serve as a sensitive probe of dark matter phenomenology. I will focus on theoretical frameworks in which dark matter candidates, such as sterile neutrinos, dipolar dark matter, or axion-like fields, induce parity-violating effects that manifest as measurable birefringence. These signatures offer a unique observational window into the interactions between dark matte ... |