Measurement of the production cross section for single top quarks in association with W bosons in proton-proton collisions at √s=13 TeV



Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Brondolin, E, Dragicevic, M, Eroe, J
et al (show 2303 more authors) (2018) Measurement of the production cross section for single top quarks in association with W bosons in proton-proton collisions at √s=13 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2018 (10). 117-.

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Abstract

<jats:title>A<jats:sc>bstract</jats:sc></jats:title><jats:p>A measurement is presented of the associated production of a single top quark and a W boson in proton-proton collisions at<jats:inline-formula><jats:alternatives><jats:tex-math>$$ \sqrt{s}=13 $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>13</mml:mn></mml:math></jats:alternatives></jats:inline-formula>TeV by the CMS Collaboration at the CERN LHC. The data collected corresponds to an integrated luminosity of 35.9 fb<jats:sup>−1</jats:sup>. The measurement is performed using events with one electron and one muon in the final state along with at least one jet originated from a bottom quark. A multivariate discriminant, exploiting the kinematic properties of the events, is used to separate the signal from the dominant<jats:inline-formula><jats:alternatives><jats:tex-math>$$ \mathrm{t}\overline{\mathrm{t}} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>t</mml:mi><mml:mover><mml:mi>t</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math></jats:alternatives></jats:inline-formula>background. The measured cross section of 63<jats:italic>.</jats:italic>1 ± 1<jats:italic>.</jats:italic>8(stat) ± 6<jats:italic>.</jats:italic>4(syst) ± 2<jats:italic>.</jats:italic>1 (lumi) pb is in agreement with the standard model expectation.</jats:p>

Item Type: Article
Uncontrolled Keywords: Hadron-Hadron scattering (experiments), Top physics
Depositing User: Symplectic Admin
Date Deposited: 18 Feb 2019 16:05
Last Modified: 17 Mar 2024 01:17
DOI: 10.1007/JHEP10(2018)117
Open Access URL: https://doi.org/10.1007/JHEP10(2018)117
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3033054