From Telescopes to Colliders: Probing Axion-Like Particles

by Yan Luo (Peking university)

Thursday 19 Dec 2024, 15:00 → 16:00 Europe/Madrid

IFAE Seminar Room (In-Person)

Axion-like particles (ALPs) are compelling candidates for new physics and have been extensively studied across a broad mass range, from sub-eV to hundreds of GeV. In this talk, I will discuss our recent works on ALP phenomenology across various experiments. First, I will present the potential for detecting ultralight ALP dark matter through radio telescopes that capture radio signals from axion-photon resonant conversion in the solar corona. We analyse data of the high-sensitivity radio telescope LOFAR, which provides stringent constraints on ALP interaction, contributing to the growing landscape of dark matter searches. I will then turn to collider and beam dump experiments, where we investigate the concurrent effects of ALPs, focusing on how ALP-photon and ALP-electron interactions jointly influence the detection of ALPs and demonstrate how current experimental limits are modified.