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Measurement of electroweak Z(v (v)over-bar)γ jj production and limits on anomalous quartic gauge couplings in pp collisions at √s=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%2F61989592%3A15310%2F23%3A73621518" target="_blank" >RIV/61989592:15310/23:73621518 - isvavai.cz</a>

  • Result on the web

    <a href="https://link.springer.com/article/10.1007/JHEP06(2023)082" target="_blank" >https://link.springer.com/article/10.1007/JHEP06(2023)082</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/JHEP06(2023)082" target="_blank" >10.1007/JHEP06(2023)082</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Measurement of electroweak Z(v (v)over-bar)γ jj production and limits on anomalous quartic gauge couplings in pp collisions at √s=13 TeV with the ATLAS detector

  • Original language description

    The electroweak production of Z(v (v) over bar)gamma in association with two jets is studied in a regime with a photon of high transverse momentum above 150 GeV using proton-proton collisions at a centre-of-mass energy of 13TeV at the Large Hadron Collider. The analysis uses a data sample with an integrated luminosity of 139 fb(-1) collected by the ATLAS detector during the 2015-2018 LHC data-taking period. This process is an important probe of the electroweak symmetry breaking mechanism in the Standard Model and is sensitive to quartic gauge boson couplings via vector-boson scattering. The fiducial Z( v (v) over bar)gamma jj cross section for electroweak production is measured to be 0.77(-0.30)(+0.34) fb and is consistent with the Standard Model prediction. Evidence of electroweak Z( v (v) over bar)gamma jj production is found with an observed significance of 3.2 sigma for the background-only hypothesis, compared with an expected significance of 3.7 sigma. The combination of this result with the previously published ATLAS observation of electroweak Z(v (v) over bar)gamma jj production yields an observed (expected) signal significance of 6.3 sigma (6.6 sigma). Limits on anomalous quartic gauge boson couplings are obtained in the framework of effective field theory with dimension-8 operators.

  • 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

    10303 - Particles and field physics

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

  • Volume of the periodical

    2023

  • Issue of the periodical within the volume

    6

  • Country of publishing house

    IT - ITALY

  • Number of pages

    48

  • Pages from-to

    "082-1"-"082-48"

  • UT code for WoS article

    001035262600001

  • EID of the result in the Scopus database

    2-s2.0-85162080709