FORMOSA: looking forward to millicharged particles at the LHC
J. Steenis*
on behalf of the FORMOSA collaboration*: corresponding author
Pre-published on:
December 17, 2024
Published on:
April 29, 2025
Abstract
The FORMOSA detector is a proposed scintillation-based experiment designed to search for signatures of "millicharged particles" produced in the forward region of the LHC. It would be ideally placed in the forward region of the LHC, preferably at the proposed Forward Physics Facility. Placing a scintillator detector in the forward region comes with many challenges from the high muon flux, but can allow current limits to be extended by over an order of magnitude. A pathfinder experiment---the FORMOSA demonstrator---was installed in the FASER cavern at the LHC in early 2024 and has been stably collecting data. Results from this demonstrator and important implications for the full detector design and DAQ are shown.
DOI: https://doi.org/10.22323/1.476.1061
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