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FACET: a new long-lived particle detector in the very forward region of the CMS experiment
Journal article   Open access   Peer reviewed

FACET: a new long-lived particle detector in the very forward region of the CMS experiment

S. Cerci, D. Sunar Cerci, D. Lazic, G. Landsberg, F. Cerutti, M. Sabate-Gilarte, M. G. Albrow, J. Berryhill, D. R. Green, J. Hirschauer, …
The journal of high energy physics, Vol.2022(6), 110
06/20/2022
DOI: 10.1007/JHEP06(2022)110
url
https://doi.org/10.1007/JHEP06(2022)110View
Published (Version of record) Open Access

Abstract

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.
Physical Sciences Physics Physics, Particles & Fields Science & Technology

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