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Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider

Alimena, Juliette; Beacham, James; Borsato, Martino; Cheng, Yangyang; Vidal, Xabier Cid; Cottin, Giovanna; Curtin, David; De Roeck, Albert; Desai, Nishita; Evans, Jared A; Knapen, Simon; Kraml, Sabine; Lessa, Andre; Liu, Zhen; Mehlhase, Sascha; Ramsey-Musolf, Michael J; Russell, Heather; Shelton, Jessie; Shuve, Brian; Verducci, Monica; ... mehr

Abstract:
Particles beyond the Standard Model (SM) can generically have lifetimes that are long compared to SM particles at the weak scale. When produced at experiments such as the Large Hadron Collider (LHC) at CERN, these long-lived particles (LLPs) can decay far from the interaction vertex of the primary proton–proton collision. Such LLP signatures are distinct from those of promptly decaying particles that are targeted by the majority of searches for new physics at the LHC, often requiring customized techniques to identify, for example, significantly displaced decay vertices, tracks with atypical properties, and short track segments. Given their non-standard nature, a comprehensive overview of LLP signatures at the LHC is beneficial to ensure that possible avenues of the discovery of new physics are not overlooked. Here we report on the joint work of a community of theorists and experimentalists with the ATLAS, CMS, and LHCb experiments—as well as those working on dedicated experiments such as MoEDAL, milliQan, MATHUSLA, CODEX-b, and FASER—to survey the current state of LLP searches at the LHC, and to chart a path for the development of LLP searches into the future, both in the upcoming Run 3 and at the high-luminosity LHC. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000124716
Veröffentlicht am 16.10.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Experimentelle Kernphysik (IEKP)
Institut für Theoretische Teilchenphysik (TTP)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 09.2020
Sprache Englisch
Identifikator ISSN: 0954-3899, 1361-6471
KITopen-ID: 1000124716
Erschienen in Journal of physics / G
Band 47
Heft 9
Seiten Art.Nr. 090501
Vorab online veröffentlicht am 08.09.2020
Nachgewiesen in Web of Science
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