Aller au contenu principal
Accès ouvert déclaré 2023 article

Search for a new scalar resonance in flavour-changing neutral-current top-quark decays t → qX (q = u, c), with X → $$ b\overline{b} $$, in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

11Citations signalées — pas une note de qualité
248Institutions déclarées
38Pays d’affiliation déclarés

Résumé fourni par la source

Abstract A search for flavour-changing neutral-current decays of a top quark into an up-type quark (either up or charm) and a light scalar particle X decaying into a bottom anti-bottom quark pair is presented. The search focuses on top-quark pair production where one top quark decays to qX, with X → $$ b\overline{b} $$ b b ¯ , and the other top quark decays according to the Standard Model, with the W boson decaying leptonically. The final state is thus characterised by an isolated electron or muon and at least four jets. Events are categorised according to the multiplicity of jets and jets tagged as originating from b-quarks, and a neural network is used to discriminate between signal and background processes. The data analysed correspond to 139 fb−1 of proton–proton collisions at a centre-of-mass energy of 13 TeV, recorded with the ATLAS detector at the LHC. The 95% confidence-level upper limits between 0.019% and 0.062% are derived for the branching fraction $$ \mathcal{B} $$ B (t → uX) and between 0.018% and 0.078% for the branching fraction $$ \mathcal{B} $$ B (t → cX), for masses of the scalar particle X between 20 and 160 GeV.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.

Contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Search for a new scalar resonance in flavour-changing neutral-current top-quark decays t → qX (q = u, c), with X → $$ b\overline{b} $$, in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector
Date Crossref
26/07/2023
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 ne compte pas comme une seconde source scientifique indépendante.

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 SheffieldThe 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 OrganizationThe University of TokyoHumboldt-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 UniversityMohamed I UniversityComenius University BratislavaUniversity of Cape TownUniversity of Illinois Urbana-ChampaignShandong UniversityCzech Technical University in PragueUniversity of WuppertalNanjing UniversityCommissariat à l'Énergie Atomique et aux Énergies AlternativesUniversité Paris-SaclayCEA Paris-SaclayInstitut de Recherche sur les Lois Fondamentales de l'UniversAristotle 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 PhysicsSLAC 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 UniversityUniversidade do Estado do Rio de JaneiroUnited Arab Emirates UniversityUniversity of Hassan II CasablancaUppsala UniversityLaboratoire AstroParticule et CosmologieTechnische Universität DresdenQueen Mary University of LondonUniversity of JohannesburgUniversity of WürzburgUniversity of OregonGaziantep UniversityUniversity of BolognaUniversity of CalabriaUniversity of Wisconsin–MadisonUniversity of OxfordUniversité Clermont AuvergneLaboratoire de Physique de Clermont AuvergneThe Ohio State 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 IowaTRIUMFRadboud University NijmegenUniversity of the WitwatersrandIstituto Nazionale di Fisica Nucleare, Sezione di LecceTbilisi State UniversityShanghai Jiao Tong 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 UniversityTsinghua UniversityUniversidade de São PauloUniversité Ibn-TofailNational Centre of Scientific Research "Demokritos"Fermi National Accelerator LaboratoryUniversity of ChicagoThe University of Texas at DallasThe University of AdelaideUniversity of the Philippines DilimanUniversitatea Națională de Știință și Tehnologie Politehnica BucureștiJagiellonian UniversityInstitute of PhysicsUniversity of AlbertaWest University of TimişoaraCalifornia State University, FresnoUniversity of New MexicoUniversity of WarwickShinshu UniversityIowa State UniversityKobe UniversityThe University of OsakaInstitute of Physics, Academia SinicaUniversity of Hong KongTokyo Institute of TechnologyUniversity of TarapacáWaseda UniversityKyushu UniversityUniversität InnsbruckKyoto UniversityKTH Royal Institute of TechnologyUniversity of MilanHong Kong University of Science and TechnologyUniversity of SalentoUniversity of UdineSapienza University of RomeUniversity of PaviaUniversity of Rome Tor VergataUniversity of PisaRoma Tre UniversityUniversity of Colorado BoulderTransylvania 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 SharjahUniversity of LisbonInstituto Politécnico de LisboaTOBB University of Economics and TechnologyUniversität HamburgKyoto University of EducationUniversité Toulouse III - Paul SabatierUniversité Fédérale de Toulouse Midi-PyrénéesUniversity of La SerenaUniversity of CoimbraUniversidad Andrés Bello

Une affiliation ne permet pas de déduire la nationalité d’un auteur.

Sujets associés

Particle physics theoretical and experimental studiesHigh-Energy Particle Collisions ResearchQuantum Chromodynamics and Particle Interactions

BNTIC News n’est pas le producteur de ces données. Recherche à la demande dans Crossref, OpenAIRE, DOAJ, Europe PMC, HAL, DataCite, ROR et la Banque mondiale, sans clé ; OpenAlex reste optionnel. Aucun service payant requis, aucune donnée externe enregistrée en base. Sources et limites.