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Probing the W tb vertex structure in t-channel single-top-quark production and decay in pp collisions at root s=8 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%2F17%3A73582018" target="_blank" >RIV/61989592:15310/17:73582018 - isvavai.cz</a>

  • Alternative codes found

    RIV/68407700:21220/17:00317406 RIV/68407700:21340/17:00317406 RIV/68407700:21670/17:00317406 RIV/00216208:11320/17:10369133

  • Result on the web

    <a href="https://link.springer.com/content/pdf/10.1007%2FJHEP04%282017%29124.pdf" target="_blank" >https://link.springer.com/content/pdf/10.1007%2FJHEP04%282017%29124.pdf</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/JHEP04(2017)124" target="_blank" >10.1007/JHEP04(2017)124</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Probing the W tb vertex structure in t-channel single-top-quark production and decay in pp collisions at root s=8 TeV with the ATLAS detector

  • Original language description

    To probe the Wtb vertex structure, top-quark and W-boson polarisation observables are measured from t-channel single-top-quark events produced in proton-proton collisions at a centre-of-mass energy of 8 TeV. The dataset corresponds to an integrated luminosity of 20.2 fb(-1), recorded with the ATLAS detector at the LHC. Selected events contain one isolated electron or muon, large missing transverse momentum and exactly two jets, with one of them identified as likely to contain a b-hadron. Stringent selection requirements are applied to discriminate t-channel single-top-quark events from background. The polarisation observables are extracted from asymmetries in angular distributions measured with respect to spin quantisation axes appropriately chosen for the top quark and the W boson. The asymmetry measurements are performed at parton level by correcting the observed angular distributions for detector effects and hadronisation after subtracting the background contributions. The measured top-quark and W-boson polarisation values are in agreement with the Standard Model predictions. Limits on the imaginary part of the anomalous coupling gR are also set from model-independent measurements.

  • 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

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2017

  • 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 (online)

  • ISSN

    1029-8479

  • e-ISSN

  • Volume of the periodical

    2017

  • Issue of the periodical within the volume

    4

  • Country of publishing house

    DE - GERMANY

  • Number of pages

    50

  • Pages from-to

    "124-1"-"124-50"

  • UT code for WoS article

    000400278200001

  • EID of the result in the Scopus database

    2-s2.0-85018280474