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Evidence for the charge asymmetry in pp -> tt(bar) production at CMS = 13 TeV with the ATLAS detector

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10476323" target="_blank" >RIV/00216208:11320/23:10476323 - isvavai.cz</a>

  • Result on the web

    <a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=q.OXpCtbbH" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=q.OXpCtbbH</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/JHEP08(2023)077" target="_blank" >10.1007/JHEP08(2023)077</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Evidence for the charge asymmetry in pp -> tt(bar) production at CMS = 13 TeV with the ATLAS detector

  • Original language description

    Inclusive and differential measurements of the top-antitop (t-t) charge asymmetryAt-tC and the leptonic asymmetry A&apos;-&apos;C are presented in proton-proton collisions atps = 13 TeV recorded by the ATLAS experiment at the CERN Large Hadron Collider.The measurement uses the complete Run 2 dataset, corresponding to an integrated luminosityof 139 fb-1, combines data in the single-lepton and dilepton channels, and employsreconstruction techniques adapted to both the resolved and boosted topologies. A Bayesianunfolding procedure is performed to correct for detector resolution and acceptance effects.The combined inclusive t-t charge asymmetry is measured to be At-tC = 0.0068 +- 0.0015,which differs from zero by 4.7 standard deviations. Differential measurements are performedas a function of the invariant mass, transverse momentum and longitudinal boostof the t-t system. Both the inclusive and differential measurements are found to be compatiblewith the Standard Model predictions, at next-to-next-to-leading order in quantumchromodynamics perturbation theory with next-to-leading-order electroweak corrections.The measurements are interpreted in the framework of the Standard Model effective fieldtheory, placing competitive bounds on several Wilson coefficients.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10300 - Physical sciences

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2023

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of High Energy Physics

  • ISSN

    1029-8479

  • e-ISSN

    1029-8479

  • Volume of the periodical

    2023

  • Issue of the periodical within the volume

    08

  • Country of publishing house

    DE - GERMANY

  • Number of pages

    89

  • Pages from-to

    077

  • UT code for WoS article

    001062398000001

  • EID of the result in the Scopus database

    2-s2.0-85169322582