Search for long-lived particles using displaced vertices and missing transverse momentum in proton-proton collisions at Formula Presented [2]

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dc.contributor.authorHayrapetyan, A.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAndrejkovic, J.W.
dc.contributor.authorBergauer, T.
dc.contributor.authorChatterjee, S.
dc.contributor.authorDamanakis, K.
dc.date.accessioned2026-04-25T14:13:21Z
dc.date.available2026-04-25T14:13:21Z
dc.date.issued2024
dc.departmentSinop Üniversitesi
dc.description.abstractA search for the production of long-lived particles in proton-proton collisions at a center-of-mass energy of 13 TeV at the CERN LHC is presented. The search is based on data collected by the CMS experiment in 2016-2018, corresponding to a total integrated luminosity of Formula Presented. This search is designed to be sensitive to long-lived particles with mean proper decay lengths between 0.1 and 1000 mm, whose decay products produce a final state with at least one displaced vertex and missing transverse momentum. A machine learning algorithm, which improves the background rejection power by more than an order of magnitude, is applied to improve the sensitivity. The observation is consistent with the standard model background prediction, and the results are used to constrain split supersymmetry (SUSY) and gauge-mediated SUSY breaking models with different gluino mean proper decay lengths and masses. This search is the first CMS search that shows sensitivity to hadronically decaying long-lived particles from signals with mass differences between the gluino and neutralino below 100 GeV. It sets the most stringent limits to date for split-SUSY models and gauge-mediated SUSY breaking models with gluino proper decay length less than 6 mm. © 2024 CERN, for the CMS Collaboration.
dc.description.sponsorshipScience and Technology Facilities Council, STFC, (ST/X000583/1)
dc.description.sponsorshipScience and Technology Facilities Council, STFC
dc.identifier.doi10.1103/PhysRevD.109.112005
dc.identifier.issn2470-0010
dc.identifier.issue11
dc.identifier.scopus2-s2.0-105027256979
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.109.112005
dc.identifier.urihttps://hdl.handle.net/11486/8033
dc.identifier.volume109
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherAmerican Physical Society
dc.relation.ispartofPhysical Review D
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_Scopus_20260420
dc.titleSearch for long-lived particles using displaced vertices and missing transverse momentum in proton-proton collisions at Formula Presented [2]
dc.typeArticle

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