Year: 2026
Type: conference-paper
Abstract: Axion-like particles (ALPs) arise in many extensions of the Standard Model and are well motivated as dark sector mediators. Their broad mass-coupling space motivates diverse searches at the LHC. Using the full Run-2 dataset, CMS has performed comprehensive ALP searches across multiple channels photon couplings in ultra-peripheral PbPb and pp collisions, top- and dark-matter-associated production, and bosonic couplings through mono-Z signatures and exotic Higgs decays. Both prompt and displaced signatures, including merged photon and electron pairs, extend the sensitivity from the MeV scale to the multi-TeV scale. These results set the most stringent limits to date in several regions and establish a broad foundation for further exploration at the HL-LHC.
DOI: 10.22323/1.499.0033
Author: Jeongeun Lee
Institution: Seoul National University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
OpenAlex ID: W7126181672
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