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arXiv · 2201.00019

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·S. Kulkarni·J. E. Brucken·L. Emediato·A. Mestvirishvili·J. Nachtman·Y. Onel·A. Penzo·O. Aydilek·B. Hacisahinoglu·S. Ozkorucuklu·H. Sert·C. Simsek·C. Zorbilmez·I. Hos·N. Hadley·A. Skuja·M. Du·R. Fang·Z. Liu·B. Isildak·V. Q. Tran
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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.

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S. Cerci, D. Sunar Cerci, D. Lazic, G. Landsberg, F. Cerutti, M. Sabate-Gilarte, M. G. Albrow, J. Berryhill, D. R. Green, J. Hirschauer, S. Kulkarni, J. E. Brucken, L. Emediato, A. Mestvirishvili, J. Nachtman, Y. Onel, A. Penzo, O. Aydilek, B. Hacisahinoglu, S. Ozkorucuklu, H. Sert, C. Simsek, C. Zorbilmez, I. Hos, N. Hadley, A. Skuja, M. Du, R. Fang, Z. Liu, B. Isildak, V. Q. Tran. 2021-12-31. FACET: A new long-lived particle detector in the very forward region of the CMS experiment. https://doi.org/10.1007/jhep06(2022)110

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