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Accès ouvert déclaré 2026 article

Search for dark matter production in association with bottom quarks and a lepton pair in proton-proton collisions at $$ \sqrt{s}=13 $$ TeV

0Citations signalées — pas une note de qualité
284Institutions déclarées
55Pays d’affiliation déclarés

Résumé fourni par la source

A bstract A search is performed for dark matter produced in association with bottom quarks and a pair of electrons or muons in data collected with the CMS detector at the LHC, corresponding to 138 fb − 1 of integrated luminosity of proton-proton collisions at a center-of-mass energy of 13 TeV. For the first time at the LHC, the associated production of a bottom quark-antiquark pair and a new heavy neutral Higgs boson (H) that subsequently decays into a leptonically decaying Z boson and a pseudoscalar (a) is explored. The latter acts as a dark matter mediator in the context of the two Higgs doublet model plus a pseudoscalar (2HDM+a). Multivariate techniques that target a wide range of mass configurations for the H and a particles are used. The observations are consistent with the expectations from standard model processes. Upper limits at 95% confidence level are set on the product of cross section and branching fraction of the new particles, ranging from 10 − 2 pb for an H mass of 400 GeV to 10 − 3 pb for an H mass of 2000 GeV. Constraints on the parameter space of a benchmark 2HDM+a model are derived and compared with expectations in the context of cosmological predictions.

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DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Search for dark matter production in association with bottom quarks and a lepton pair in proton-proton collisions at $$ \sqrt{s}=13 $$ TeV
Date Crossref
01/06/2026
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.

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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 DameUCLouvainTata Institute of Fundamental ResearchCentro Brasileiro de Pesquisas FísicasUniversidade do Estado do Rio de JaneiroUniversidade Estadual de Campinas (UNICAMP)Universidade Federal do Rio Grande do SulUniversidade Federal do ABCBulgarian Academy of SciencesSofia University "St. Kliment Ohridski"University of TarapacáBeihang UniversityTsinghua UniversityUniversity of Chinese Academy of SciencesPeking UniversityChina Center of Advanced Science and TechnologyUniversity of Puerto Rico SystemChina Spallation Neutron SourceFermi National Accelerator LaboratoryUniversity of FloridaEuropean Organization for Nuclear ResearchDeutsches Elektronen-Synchrotron DESYSouth China Normal UniversityKyung Hee UniversityUniversity of Science and Technology of ChinaNanjing Normal UniversityHenan Normal UniversityUniversity of Shanghai for Science and TechnologyUniversity of IowaFlorida State UniversityNational 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 TechnologyHelwan UniversitySuez 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 LafayetteCentre National de la Recherche ScientifiqueÉcole PolytechniqueInstitut National de Physique Nucléaire et de Physique des ParticulesLaboratoire Leprince-RinguetUniversité 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 LyonIstinye UniversityGeorgian Technical UniversityRWTH Aachen UniversityUniversidade do Estado do AmazonasUniversität HamburgIndian Institute of Technology MadrasUniversity of WuppertalBrandenburg University of Technology Cottbus-SenftenbergForschungszentrum JülichKyungpook National UniversityNational Central UniversityVanderbilt UniversityNational 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 DebrecenKároly Róbert University CollegePanjab UniversityPunjab Agricultural UniversityUniversity of DelhiUniversity of California San DiegoIndian Institute of Technology KanpurSaha Institute of Nuclear PhysicsVisva-Bharati UniversityCalifornia Institute of TechnologyWayne State UniversityAmity UniversityUniversity of Wisconsin–MadisonUniversity of Petroleum and Energy StudiesNational Institute of Science Education and ResearchHomi Bhabha National InstituteIndian Institute of Technology BhubaneswarIndian Institute of Science Education and Research KolkataIndian Institute of Science Education and Research MohaliIndian Institute of Science Education and Research, BhopalUniversity of HyderabadIndian Institute of Science Education and Research BerhampurIndian Institute of Science Education and Research, TirupatiIsfahan 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 BariIstituto 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 BasilicataIstituto Nazionale di Fisica Nucleare, Sezione di PadovaUniversity of PaduaLuleå University of TechnologyIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di LegnaroIstituto Nazionale di Fisica Nucleare, Sezione di PaviaUniversity of PaviaIstituto Officina dei MaterialiUniversity of PisaIstituto Nazionale di Fisica Nucleare, Sezione di PisaScuola Normale SuperioreUniversity of SienaIstituto 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 UniversitySungkyunkwan UniversityUniversity of SeoulUniversity of Illinois ChicagoTexas Tech UniversitySejong UniversityChonnam National UniversityMitchell InstituteTexas A&M UniversityHanyang UniversityYonsei UniversityMassachusetts Institute of TechnologyAmerican 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 TecnológicasUniversity of AlabamaUniversidad Autónoma de MadridUniversidad de OviedoUniversidad de CantabriaInstituto de Física de CantabriaUniversity of ColomboEastern University, Sri LankaTrincomalee HospitalUniversity of RuhunaÉcole Polytechnique Fédérale de LausanneUniversity of ZurichETH ZurichInstitute of Particle PhysicsStefan Meyer Institute for Subatomic PhysicsLaboratoire d’Annecy de Physique des ParticulesChulalongkorn UniversityTunis El Manar UniversityCukurova UniversityNear East UniversityKonya Technical UniversityIzmir UniversityBakırçay ÜniversitesiAdıyaman UniversityMiddle East Technical UniversityYozgat Bozok ÜniversitesiBoğaziçi UniversityMarmara UniversityMilli Savunma ÜniversitesiKafkas UniversityIstanbul Technical UniversityOkan UniversityHacettepe UniversityErzincan Binali Yıldırım UniversityIstanbul UniversityIstanbul University-CerrahpaşaYıldız Technical UniversityInstitute for Scintillation MaterialsKharkiv Institute of Physics and TechnologyUniversity of BristolRutherford Appleton LaboratoryUniversity of SouthamptonImperial Valley CollegeDurham UniversityMonash UniversityBrunel University of LondonBaylor UniversityCatholic University of AmericaBrown UniversityShorter CollegeKaramanoğlu Mehmetbey UniversityUniversity of California, DavisUniversity of California SystemUniversity of California, RiversideCarnegie Mellon UniversityUniversity of Colorado BoulderUniversity of Colorado SystemCornell UniversityUnited States Naval AcademyFlorida Institute of TechnologyAin Shams UniversityBingöl UniversitySinop UniversityErciyes UniversityJohns Hopkins UniversityUniversity of KansasHoria 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 KnoxvilleTexas A&M University at QatarUniversity of VirginiaAcademy of Sciences Republic of Uzbekistan

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