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Accès ouvert déclaré 2023 article

Search for flavour-changing neutral current interactions of the top quark and the Higgs boson in events with a pair of τ-leptons in pp collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

7Citations signalées, ce qui n’est pas une note de qualité
246Institutions déclarées
38Pays d’affiliation déclarés

Rattachement africain : fr, us, de, Maroc, il, cl, it, pl, ca, tr, ch, gb, es, ro, az, se, ar, gr, br, pt, no, jp, nl, sk, Afrique du Sud, cn, cz, rs, au, ae, dk, ge, hk, tw, si, ph, at, co. Niveau de preuve : code pays fourni par la source.

Le résumé fourni par la source

Abstract A search for flavour-changing neutral current (FCNC) tqH interactions involving a top quark, another up-type quark (q = u, c), and a Standard Model (SM) Higgs boson decaying into a τ-lepton pair (H → τ+τ−) is presented. The search is based on a dataset of pp collisions at $$ \sqrt{s} $$ s = 13 TeV that corresponds to an integrated luminosity of 139 fb−1 recorded with the ATLAS detector at the Large Hadron Collider. Two processes are considered: single top quark FCNC production in association with a Higgs boson (pp → tH), and top quark pair production in which one of top quarks decays into Wb and the other decays into qH through the FCNC interactions. The search selects events with two hadronically decaying τ-lepton candidates (τhad) or at least one τhad with an additional lepton (e, μ), as well as multiple jets. Event kinematics is used to separate signal from the background through a multivariate discriminant. A slight excess of data is observed with a significance of 2.3σ above the expected SM background, and 95% CL upper limits on the t → qH branching ratios are derived. The observed (expected) 95% CL upper limits set on the t → cH and t → uH branching ratios are $$ 9.4\times {10}^{-4}\left({4.8}_{-1.4}^{+2.2}\times {10}^{-4}\right) $$ 9.4 × 10 − 4 4.8 − 1.4 + 2.2 × 10 − 4 and $$ 6.9\times {10}^{-4}\left({3.5}_{-1.0}^{+1.5}\times {10}^{-4}\right) $$ 6.9 × 10 − 4 3.5 − 1.0 + 1.5 × 10 − 4 , respectively. The corresponding combined observed (expected) upper limits on the dimension-6 operator Wilson coefficients in the effective tqH couplings are Ccϕ< 1.35 (0.97) and Cuϕ< 1.16 (0.82).

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Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Search for flavour-changing neutral current interactions of the top quark and the Higgs boson in events with a pair of τ-leptons in pp collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector
Date Crossref
23/06/2023
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 il ne compte pas comme une seconde source scientifique indépendante.

Les institutions déclarées

Centre National de la Recherche ScientifiqueAix-Marseille UniversitéCentre de physique des particules de MarseilleInstitut National de Physique Nucléaire et de Physique des ParticulesUniversity of Massachusetts AmherstUniversity of GöttingenBrookhaven National LaboratoryMohammed V UniversityTel Aviv UniversityTechnion – Israel Institute of TechnologyNew York UniversityPontificia Universidad Católica de ChileIstituto Nazionale di Fisica Nucleare, Sezione di TriesteIstituto Nazionale di Fisica Nucleare, Gruppo Collegato di UdineUniversité Savoie Mont BlancAGH University of KrakowUniversity of TorontoBrandeis UniversityNorthern Illinois UniversityIstanbul UniversityUniversity of GenevaRutherford Appleton LaboratoryUniversity of California, Santa CruzEuropean Organization for Nuclear ResearchInstitute for High Energy PhysicsIstituto Nazionale di Fisica Nucleare, Sezione di PaviaJohannes Gutenberg University MainzAlexandru Ioan Cuza UniversityUniversidad de GranadaAzerbaijan National Academy of SciencesMcGill UniversityRoyal Holloway University of LondonDeutsches Elektronen-Synchrotron DESYIstituto Nazionale di Fisica Nucleare, Roma Tor VergataWeizmann Institute of ScienceLund UniversityArgonne National LaboratoryColumbia UniversityIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversity of VictoriaIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiConsejo Nacional de Investigaciones Científicas y TécnicasInstituto de Física La PlataUniversidad Nacional de La PlataUniversity of EdinburghHoria Hulubei National Institute for R and D in Physics and Nuclear EngineeringNational Technical University of AthensUniversity of OklahomaUniversity of ArizonaIstituto Nazionale di Fisica Nucleare, Sezione di MilanoUniversity of SussexUniversity of BirminghamIstituto Nazionale di Fisica Nucleare, Sezione di NapoliUniversity of WashingtonUniversidad Autónoma de MadridUniversidade Federal do Rio de JaneiroLudwig-Maximilians-Universität MünchenUniversity of MichiganLIP - Laboratory of Instrumentation and Experimental Particle PhysicsUniversitat de ValènciaInstituto de Física CorpuscularUniversity of OsloUniversity of SheffieldCommissariat à l'Énergie Atomique et aux Énergies AlternativesUniversité Paris-SaclayCEA Paris-SaclayInstitut de Recherche sur les Lois Fondamentales de l'UniversThe University of Texas at AustinUniversity of BernStockholm UniversityNational and Kapodistrian University of AthensIstituto Nazionale di Fisica Nucleare, Sezione di PisaOklahoma State UniversityLawrence Berkeley National LaboratoryIstituto Nazionale di Fisica Nucleare, Sezione di Roma IHigh Energy Accelerator Research OrganizationHumboldt-Universität zu BerlinUniversidade Federal de Juiz de ForaDuke UniversityUniversity of LiverpoolInstitute of Particle PhysicsUniversité de MontréalUniversity of FreiburgNational Institute for Subatomic PhysicsUniversity of AmsterdamObayashi (Japan)Nagoya UniversityOtsuka (Japan)Ochanomizu UniversityHarvard UniversityUppsala UniversityMohamed I UniversityComenius University BratislavaUniversity of Cape TownUniversity of Illinois Urbana-ChampaignShandong UniversityCzech Technical University in PragueUniversity of WuppertalNanjing UniversityAristotle University of ThessalonikiCarleton UniversityYale UniversityUniversity of BelgradeThe University of Texas at ArlingtonThe University of SydneyCharles UniversityHeidelberg UniversityUniversity of CambridgeInstitute of Nuclear Physics, Polish Academy of SciencesUniversity of PittsburghUniversity of BonnThe University of MelbourneUniversity of GenoaUniversity College LondonMax Planck Institute for PhysicsUniversity of OregonSLAC National Accelerator LaboratoryPalacký University OlomoucUniversity of ManchesterUniversity of Science and Technology of ChinaChinese Academy of SciencesInstitute of High Energy PhysicsLancaster UniversityTU Dortmund UniversityIstituto Nazionale di Fisica Nucleare, Sezione di Roma TreLaboratoire de Physique des 2 Infinis Irène Joliot-CurieUniversity of GlasgowUniversity of SiegenBoğaziçi UniversityUniversité Paris CitéSorbonne UniversitéLaboratoire de Physique Nucléaire et de Hautes ÉnergiesTufts UniversityIstinye UniversityUniversity of BergenStony Brook UniversityUnited Arab Emirates UniversityUniversity of Hassan II CasablancaLaboratoire AstroParticule et CosmologieTechnische Universität DresdenQueen Mary University of LondonUniversity of JohannesburgUniversity of WürzburgGaziantep UniversityUniversity of BolognaUniversity of Wisconsin–MadisonUniversity of OxfordUniversité Clermont AuvergneLaboratoire de Physique de Clermont AuvergneThe Ohio State UniversityShanghai Jiao Tong UniversityFederico Santa María Technical UniversitySlovak Academy of SciencesInstitute of Experimental Physics of the Slovak Academy of SciencesSimon Fraser UniversityBoston UniversityMichigan State UniversityJustus-Liebig-Universität GießenUniversity of Chinese Academy of SciencesAnkara UniversityIndiana University BloomingtonUniversity of CopenhagenUniversity of IowaUniversity of CalabriaTRIUMFRadboud University NijmegenUniversity of the WitwatersrandIstituto Nazionale di Fisica Nucleare, Sezione di LecceThe University of TokyoTbilisi State UniversityTsinghua UniversityChinese University of Hong KongNational Tsing Hua UniversityFZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicUniversity of LjubljanaJožef Stefan InstituteJožef Stefan International Postgraduate SchoolIstituto Nazionale di Fisica Nucleare, Sezione di GenovaInstitut polytechnique de GrenobleUniversité Grenoble AlpesUniversity of British ColumbiaIstituto Nazionale di Fisica Nucleare, Trento Institute for Fundamental Physics And ApplicationsUniversity of California, IrvineUniversity of PennsylvaniaUniversidad de Buenos AiresInstituto de Física de Buenos AiresFundación Ciencias Exactas y NaturalesYork UniversitySouthern Methodist UniversityUniversité Ibn-TofailUniversidade de São PauloNational Centre of Scientific Research "Demokritos"Fermi National Accelerator LaboratoryUniversity of ChicagoThe University of Texas at DallasThe University of AdelaideUniversity of the Philippines DilimanJagiellonian UniversityInstitute of PhysicsUniversity of AlbertaWest University of TimişoaraCalifornia State University, FresnoUniversity of New MexicoUniversity of WarwickShinshu UniversityIowa State UniversityKobe UniversityThe University of OsakaUniversitatea Națională de Știință și Tehnologie Politehnica BucureștiInstitute of Physics, Academia SinicaUniversity of Hong KongTokyo Institute of TechnologyUniversity of TarapacáWaseda UniversityKyushu UniversityUniversität InnsbruckKyoto UniversityHong Kong University of Science and TechnologyKTH Royal Institute of TechnologyUniversity of PaviaUniversity of SalentoUniversity of UdineSapienza University of RomeUniversity of PisaUniversity of MilanRoma Tre UniversityUniversity of Colorado BoulderUniversidade do Estado do Rio de JaneiroUniversity of Rome Tor VergataTransylvania University of BrașovNational Institute for Research and Development of Isotopic and Molecular TechnologiesUniversity of TrentoUniversidad Antonio NariñoUniversidad Nacional de ColombiaUniversity of TsukubaLouisiana Tech UniversityThe Abdus Salam International Centre for Theoretical Physics (ICTP)University of SharjahTOBB University of Economics and TechnologyUniversität HamburgKyoto University of EducationUniversidad Andrés BelloUniversity of La SerenaUniversité Toulouse III - Paul SabatierUniversité Fédérale de Toulouse Midi-PyrénéesUniversity of Coimbra

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Les sujets associés

Particle physics theoretical and experimental studiesHigh-Energy Particle Collisions ResearchParticle Detector Development and Performance

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