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Measurement of the energy asymmetry in $$t{\bar{t}}j$$ production at $$13\,$$TeV with the ATLAS experiment and interpretation in the SMEFT framework

18Citations signalées, ce qui n’est pas une note de qualité
255Institutions déclarées
39Pays d’affiliation déclarés

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

Le résumé fourni par la source

Abstract A measurement of the energy asymmetry in jet-associated top-quark pair production is presented using $$139\,{\mathrm {fb}}^{-1}$$ 139 fb - 1 of data collected by the ATLAS detector at the Large Hadron Collider during pp collisions at $$\sqrt{s}=13\,\text {TeV}$$ s = 13 TeV . The observable measures the different probability of top and antitop quarks to have the higher energy as a function of the jet scattering angle with respect to the beam axis. The energy asymmetry is measured in the semileptonic $$t{\bar{t}}$$ t t ¯ decay channel, and the hadronically decaying top quark must have transverse momentum above $$350\,\text {GeV}$$ 350 GeV . The results are corrected for detector effects to particle level in three bins of the scattering angle of the associated jet. The measurement agrees with the SM prediction at next-to-leading-order accuracy in quantum chromodynamics in all three bins. In the bin with the largest expected asymmetry, where the jet is emitted perpendicular to the beam, the energy asymmetry is measured to be $$-0.043\pm 0.020$$ - 0.043 ± 0.020 , in agreement with the SM prediction of $$-0.037\pm 0.003$$ - 0.037 ± 0.003 . Interpreting this result in the framework of the Standard Model effective field theory (SMEFT), it is shown that the energy asymmetry is sensitive to the top-quark chirality in four-quark operators and is therefore a valuable new observable in global SMEFT fits.

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Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Measurement of the energy asymmetry in $$t{\bar{t}}j$$ production at $$13\,$$TeV with the ATLAS experiment and interpretation in the SMEFT framework
Date Crossref
01/04/2022
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 AmherstEuropean Organization for Nuclear ResearchUniversity of GöttingenRoyal Holloway University of LondonBrookhaven National LaboratoryMohammed V UniversityTel Aviv UniversityTechnion – Israel Institute of TechnologyArgonne National LaboratoryPontificia 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 UniversityBoğaziçi UniversityUniversity of GenevaRutherford Appleton LaboratoryUniversity of California, Santa CruzUniversité Paris-SaclayLaboratoire de Physique des 2 Infinis Irène Joliot-CurieInstitute for High Energy PhysicsIstituto Nazionale di Fisica Nucleare, Sezione di PaviaRadboud University NijmegenNational Institute for Subatomic PhysicsAlexandru Ioan Cuza UniversityLIP - Laboratory of Instrumentation and Experimental Particle PhysicsJoint Institute for Nuclear ResearchMcGill UniversityDeutsches Elektronen-Synchrotron DESYIstituto Nazionale di Fisica Nucleare, Roma Tor VergataWeizmann Institute of ScienceKyoto UniversityJohannes Gutenberg University MainzLund UniversityP.N. Lebedev Physical Institute of the Russian Academy of SciencesColumbia 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 OklahomaNational Research Tomsk State UniversityIstituto 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 JaneiroUniversity of OxfordUniversity of MichiganUniversitat de ValènciaInstituto de Física CorpuscularUniversity of OsloUniversity of SheffieldCommissariat à l'Énergie Atomique et aux Énergies AlternativesCEA Paris-SaclayInstitut de Recherche sur les Lois Fondamentales de l'UniversThe University of Texas at AustinUniversity of BernStockholm UniversityNational and Kapodistrian University of AthensSiberian Branch of the Russian Academy of SciencesBudker Institute of Nuclear PhysicsIstituto Nazionale di Fisica Nucleare, Sezione di PisaOklahoma State UniversityLawrence Berkeley National LaboratoryUniversity of California, BerkeleyIstituto Nazionale di Fisica Nucleare, Sezione di Roma IHigh Energy Accelerator Research OrganizationUniversidade Federal de Juiz de ForaDuke UniversityUniversity of LiverpoolInstitute of Particle PhysicsUniversité de MontréalUniversity of FreiburgUniversity of California, IrvineLudwig-Maximilians-Universität MünchenObayashi (Japan)Nagoya UniversityOtsuka (Japan)Ochanomizu UniversityHarvard UniversityUppsala UniversityMohamed I UniversityComenius University BratislavaUniversity of Cape TownUniversity of Illinois Urbana-ChampaignHumboldt-Universität zu BerlinShandong UniversityCzech Technical University in PragueUniversity of WuppertalNanjing UniversityAristotle University of ThessalonikiCarleton UniversitySimon Fraser UniversityYale UniversityUniversity of AmsterdamUniversity of BelgradeThe University of Texas at ArlingtonThe University of SydneyCharles UniversityHeidelberg UniversityInstitute 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 LaboratoryUniversity of Science and Technology of ChinaChinese Academy of SciencesInstitute of High Energy PhysicsKurchatov InstitutePetersburg Nuclear Physics InstituteLancaster UniversityIstituto Nazionale di Fisica Nucleare, Sezione di Roma TreUniversity of ManchesterUniversity of GlasgowUniversity of CambridgeUniversity of SiegenThe University of AdelaideCalifornia State University, Long BeachUniversité Paris CitéSorbonne UniversitéLaboratoire de Physique Nucléaire et de Hautes ÉnergiesTufts UniversityStony Brook UniversityNational Research Nuclear University MEPhIUniversity of Hassan II CasablancaUniversity of ArizonaTechnische Universität DresdenSouthern Methodist UniversityQueen Mary University of LondonUniversity of WürzburgGaziantep UniversityUniversity of BolognaUniversity of AlbertaUniversity of Wisconsin–MadisonUniversité 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 SciencesUniversity of BergenBoston UniversityMichigan State UniversityJustus-Liebig-Universität GießenAnkara UniversityIndiana University BloomingtonUniversity of CopenhagenUniversity of IowaUniversity of CalabriaTRIUMFUniversity of JohannesburgIstituto Nazionale di Fisica Nucleare, Sezione di LeccePalacký University OlomoucIstanbul Bilgi UniversityUniversidad de GranadaTbilisi State UniversityTsinghua UniversityChinese University of Hong KongNational Tsing Hua UniversityUniversity of the WitwatersrandUniversity of Chinese Academy of SciencesFZU ‒ 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 GenovaIowa State UniversityInstitut polytechnique de GrenobleUniversité Grenoble AlpesUniversity of British ColumbiaNew York UniversityIstituto Nazionale di Fisica Nucleare, Trento Institute for Fundamental Physics And ApplicationsTU Dortmund UniversityUniversity of PennsylvaniaUniversidad de Buenos AiresYork UniversityInstitute for High Energy PhysicsFederal University of São João del-ReiUniversidade de São PauloUniversité Ibn-TofailThe University of TokyoUniversity of WarwickNational Centre of Scientific Research "Demokritos"The University of Texas at DallasUniversity of the Philippines DilimanFermi National Accelerator LaboratoryUniversity of ChicagoInstitute for Theoretical and Experimental PhysicsJagiellonian UniversityInstitute of PhysicsLomonosov Moscow State UniversityWest University of TimişoaraUniversity of New MexicoNational Academy of Sciences of BelarusB.I. Stepanov Institute of PhysicsShinshu UniversityKobe UniversityThe University of OsakaUniversitatea Națională de Știință și Tehnologie Politehnica BucureștiInstitute of Physics, Academia SinicaBelarusian State UniversityTokyo Institute of TechnologyUniversity of TarapacáWaseda UniversityKyushu UniversityUniversität InnsbruckUniversidad Andrés BelloUniversity of MilanKTH Royal Institute of TechnologyUniversity of PaviaHong Kong University of Science and TechnologySapienza University of RomeUniversity of UdineRoma Tre UniversityUniversity of Rome Tor VergataUniversity of Naples Federico IIUniversity of PisaUniversity of Hong KongTransylvania University of BrașovNational Institute for Research and Development of Isotopic and Molecular TechnologiesUniversity of TrentoUniversidad Antonio NariñoUniversidad Nacional de ColombiaUniversity of TsukubaLouisiana Tech UniversityUniversity of SalentoNovosibirsk State UniversityThe Abdus Salam International Centre for Theoretical Physics (ICTP)University of SharjahTOBB University of Economics and TechnologyUniversität HamburgKyoto University of EducationUniversity of La SerenaUniversity of CoimbraMoscow Institute of Physics and Technology

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

Les sujets associés

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

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