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Accès ouvert déclaré 2026 article

Search for the pair production of long-lived supersymmetric partners of the tau lepton in proton-proton collisions at $$ \sqrt{s}=13 $$ TeV

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277Institutions déclarées
54Pays d’affiliation déclarés

Résumé fourni par la source

A bstract Gauge-mediated supersymmetry-breaking models provide a strong motivation to search for a supersymmetric partner of the tau lepton (stau) with a macroscopic lifetime. Long-lived stau decays produce tau leptons that are displaced from the primary proton-proton interaction vertex, leading to an unconventional signature. This paper presents a search for the direct production of long-lived staus decaying within the CMS tracker volume in proton-proton collisions at $$ \sqrt{s}=13 $$ s = 13 TeV, performed for the first time with an identification algorithm based on a graph neural network dedicated to displaced tau leptons. The data sample, corresponding to an integrated luminosity of 138 fb − 1 , was recorded with the CMS experiment at the CERN LHC between 2016 and 2018. This search excludes, at 95% confidence level, stau masses, $$ {m}_{\overset{\sim }{\uptau}} $$ m τ ~ , in the 126–260 (90–425) GeV range for a proper decay length of 50 mm in the maximally mixed (mass-degenerate) scenario, while for $$ {m}_{\overset{\sim }{\uptau}}=200 $$ m τ ~ = 200 GeV, stau proper decay lengths are excluded in the range 21–94 (6–333) mm. These results improve the exclusion limits compared to previous searches, and extend the parameter space explored in the context of supersymmetry.

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Contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Search for the pair production of long-lived supersymmetric partners of the tau lepton in proton-proton collisions at $$ \sqrt{s}=13 $$ TeV
Date Crossref
10/07/2026
Éditeur
Springer Science and Business Media LLC
Type
journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude et ne compte pas comme une seconde source scientifique indépendante.

Institutions déclarées

A. Alikhanyan National LaboratoryYerevan State UniversityInstitute of High Energy PhysicsTU WienUniversity of California, Santa BarbaraUniversity of AntwerpVrije Universiteit BrusselGhent University HospitalUniversité Libre de BruxellesUniversity of Notre DameRWTH Aachen UniversityUCLouvainCentro Brasileiro de Pesquisas FísicasUniversidade do Estado do Rio de JaneiroUniversidade Estadual de Campinas (UNICAMP)Universidade Federal do Rio Grande do SulUniversidade do Estado do AmazonasUniversidade Federal do ABCBulgarian Academy of SciencesSofia University "St. Kliment Ohridski"University of TarapacáUniversidad Técnica Federico Santa MaríaBeihang UniversityTsinghua UniversityUniversity of Chinese Academy of SciencesVanderbilt UniversityMassachusetts Institute of TechnologyPeking UniversityHanyang UniversityFermi National Accelerator LaboratoryUniversity of FloridaDeutsches Elektronen-Synchrotron DESYSouth China Normal UniversityKyung Hee UniversityUniversity of Science and Technology of ChinaNanjing Normal UniversityZhengzhou UniversityHenan Normal UniversityUniversity of Shanghai for Science and TechnologyUniversity of IowaNational Taiwan UniversityFudan UniversityInstitute of Modern PhysicsZhejiang UniversityUniversidad de AntioquiaUniversity of SplitRuđer Bošković InstituteUniversity of CyprusCharles UniversityNational Polytechnic SchoolUniversidad San Francisco de QuitoCairo UniversityAcademy of Scientific Research and TechnologySuez UniversityBritish University in EgyptFayoum UniversityNational Institute of Chemical Physics and BiophysicsUniversity of HelsinkiHelsinki Institute of PhysicsLappeenranta-Lahti University of TechnologyCommissariat à l'Énergie Atomique et aux Énergies AlternativesUniversité Paris-SaclayCEA Paris-SaclayInstitut de Recherche sur les Lois Fondamentales de l'UniversPurdue University West LafayetteInstitut Polytechnique de ParisIndian Institute of Technology HyderabadCentre National de la Recherche ScientifiqueUniversité de Haute-AlsaceInstitut Pluridisciplinaire Hubert CurienUniversité de StrasbourgCentre de Calcul de l’Institut National de Physique Nucléaire et de Physique des ParticulesInstitute of Nuclear Physics of LyonInstitut de Physique des 2 Infinis de LyonGeorgian Technical UniversityUniversität HamburgIndian Institute of Technology MadrasUniversity of WuppertalBrandenburg University of Technology Cottbus-SenftenbergForschungszentrum JülichKyungpook National UniversityNational Central UniversityEuropean Organization for Nuclear ResearchNational Centre of Scientific Research "Demokritos"Institute of Nuclear and Particle PhysicsNational and Kapodistrian University of AthensNational Technical University of AthensUniversity of IoanninaHUN-REN Wigner Research Centre for PhysicsHUN-REN Institute for Nuclear ResearchBabeș-Bolyai UniversityEötvös Loránd UniversityAssiut UniversityUniversity of DebrecenUniversity of KansasIndian Institute of Technology BhubaneswarPanjab UniversityPunjab Agricultural UniversityTata Institute of Fundamental ResearchUniversity of DelhiIndian Institute of Technology MandiUniversity of HyderabadUniversity of California San DiegoIndian Institute of Technology KanpurCalifornia Institute of TechnologySaha Institute of Nuclear PhysicsWayne State UniversityIndian Institute of Science Education and Research MohaliUniversity of Wisconsin–MadisonVisva-Bharati UniversityHomi Bhabha National InstituteIndian Institute of Science Education and Research KolkataIndian Institute of Science Education and Research, BhopalIndian Institute of Science Education and Research BerhampurIndian Institute of Science Education and Research, TirupatiUniversity of Puerto Rico SystemIsfahan University of TechnologySharif University of TechnologyInstitute for Research in Fundamental SciencesUniversity of Science and Technology of MazandaranArak UniversityUniversity College DublinIstituto Nazionale di Fisica Nucleare, Sezione di BariUniversity of Bari Aldo MoroPolytechnic University of BariHelwan UniversityIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversity of BolognaNational Agency for New Technologies, Energy and Sustainable Economic DevelopmentUniversity of PerugiaIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaUniversity of CataniaIstituto Nazionale di Fisica Nucleare, Sezione di CataniaCentro Siciliano di Fisica Nucleare e di Struttura della MateriaIstituto Nazionale di Fisica Nucleare, Sezione di FirenzeUniversity of FlorenceIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiMarconi UniversityIstituto Nazionale di Fisica Nucleare, Sezione di GenovaUniversity of GenoaIstituto Nazionale di Fisica Nucleare, Sezione di Milano BicoccaUniversity of Milano-BicoccaIstituto Nazionale di Fisica Nucleare, Sezione di NapoliUniversity of Naples Federico IIUniversity of BasilicataScuola Superiore MeridionaleIstituto Nazionale di Fisica Nucleare, Sezione di PadovaUniversity of PaduaUniversity of CagliariLuleå University of TechnologyIstituto Nazionale di Fisica Nucleare, Sezione di PaviaUniversity of PaviaIstituto Officina dei MaterialiUniversity of PisaIstituto Nazionale di Fisica Nucleare, Sezione di PisaScuola Normale SuperioreUniversity of SienaUniversity of Petroleum and Energy StudiesIstituto Nazionale di Fisica Nucleare, Sezione di Roma ISapienza University of RomeIstituto Nazionale di Fisica Nucleare, Sezione di TorinoUniversity of TurinUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro”University of TriesteIstituto Nazionale di Fisica Nucleare, Sezione di TriesteSeoul National UniversityUniversity of SeoulUniversity of Illinois ChicagoTexas Tech UniversitySejong UniversityChonnam National UniversityYonsei UniversitySungkyunkwan UniversityAmerican University of the Middle EastKuwait UniversityRiga Technical UniversityUniversity of LatviaVilnius UniversityUniversity of MalayaNational University of MalaysiaUniversidad de SonoraInstituto de Estudios AvanzadosInstituto Politécnico NacionalIbero American UniversityBenemérita Universidad Autónoma de PueblaUniversity of MontenegroUniversity of CanterburyQuaid-i-Azam UniversityJagiellonian UniversityAGH University of KrakowNational Centre for Nuclear ResearchUniversity of WarsawWarsaw University of TechnologyLIP - Laboratory of Instrumentation and Experimental Particle PhysicsUniversity of BelgradeCentro de Investigaciones Energéticas, Medioambientales y TecnológicasUniversidad Autónoma de MadridUniversidad de CantabriaEastern University, Sri LankaUniversity of ColomboUniversity of RuhunaÉcole Polytechnique Fédérale de LausanneUniversity of ZurichETH ZurichInstitute of Particle PhysicsStefan Meyer Institute for Subatomic PhysicsChulalongkorn UniversityTunis El Manar UniversityCukurova UniversityNear East UniversityKonya Technical UniversityIzmir UniversityBakırçay ÜniversitesiAdıyaman UniversityHacettepe UniversityMiddle East Technical UniversityYozgat Bozok ÜniversitesiBoğaziçi Universityİstanbul Sabahattin Zaim ÜniversitesiMarmara UniversityMilli Savunma ÜniversitesiInstitute of Information SecurityKafkas UniversityIstanbul Technical UniversityOkan UniversityIstanbul UniversityIstanbul University-CerrahpaşaYıldız Technical UniversityIstinye UniversityInstitute for Scintillation MaterialsKharkiv Institute of Physics and TechnologyUniversity of BristolRutherford Appleton LaboratoryUniversity of SouthamptonImperial Valley CollegeMonash UniversityBrunel University of LondonBaylor UniversityShorter CollegeCatholic University of AmericaUniversity of AlabamaBrown UniversityKaramanoğlu Mehmetbey UniversityUniversity of California, DavisUniversity of California SystemUniversity of California, RiversideCalifornia Lutheran UniversityCarnegie Mellon UniversityUniversity of Colorado BoulderUniversity of Colorado SystemCornell UniversityUnited States Naval AcademyFlorida State UniversityFlorida Institute of TechnologyBingöl UniversitySinop UniversityErciyes UniversityJohns Hopkins UniversityHoria Hulubei National Institute for R and D in Physics and Nuclear EngineeringFZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicKansas State UniversityUniversity of Maryland, College ParkUniversity of Minnesota SystemUniversity of Nebraska–LincolnUniversity at Buffalo, State University of New YorkUniversidad del NoresteThe Ohio State UniversityPrinceton UniversityPurdue University NorthwestRice UniversityUniversity of RochesterRutgers, The State University of New JerseyUniversity of Tennessee at KnoxvilleMitchell InstituteTexas A&M UniversityHamad bin Khalifa UniversityUniversity of Virginia

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