Browsing by Author "Cerci, S."

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    FACET: A new long-lived particle detector in the very forward region of the CMS experiment
    (Springer, 2022-06-20) Cerci, S.; Işıldak, Bora; Natural and Mathematical Sciences; IŞILDAK, Bora
    We describe a proposal to add a set of very forward detectors to the CMS experiment for the high-luminosity era of the Large Hadron Collider to search for beyond the standard model long-lived particles, such as dark photons, heavy neutral leptons, axion-like particles, and dark Higgs bosons. The proposed subsystem is called FACET for Forward-Aperture CMS ExTension, and will be sensitive to any particles that can penetrate at least 50 m of magnetized iron and decay in an 18 m long, 1 m diameter vacuum pipe. The decay products will be measured in detectors using identical technology to the planned CMS Phase-2 upgrade.