High-E_T Isolated-Photon Plus Jets Production in pp Collisions at √s̅ = 8 TeV with the ATLAS Detector

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High-E_T Isolated-Photon Plus Jets Production in pp Collisions at √s̅ = 8 TeV with the ATLAS Detector

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Title: High-E_T Isolated-Photon Plus Jets Production in pp Collisions at √s̅ = 8 TeV with the ATLAS Detector
Author(s):
Aaboud, M.;
Aad, G.;
Abbott, B.;
Abdallah, J.;
Abdinov, O.;
Abeloos, B.;
AbouZeid, O. S.;
Izen, Joseph M.;
Meirose, Bernhard;
Reeves, Kendall;
Kurth, Matthew G.;
Leyton, Michael;
ATLAS Collaboration
Date Created: 2017-08-09
Item Type: article
Keywords: Show Keywords
Abstract: Detailed measurements of t-channel single top-quark production are presented. They use 20.2 fb⁻¹ of data collected by the ATLAS experiment in proton–proton collisions at a centre-of-mass energy of 8 TeV at the LHC. Total, fiducial and differential cross-sections are measured for both top-quark and top-antiquark production. The fiducial cross-section is measured with a precision of 5.8% (top quark) and 7.8% (top antiquark), respectively. The total cross-sections are measured to be σ_{tot}(tq) = 56.7_{-3.8}^{+4.3} pb for top-quark production and σ_{tot}(t̅q) = 32.9_{-2.7}^{+3.0} pb for top-antiquark production, in agreement with the Standard Model prediction. In addition, the ratio of top-quark to top-antiquark production cross-sections is determined to be R_t = 1.72 ± 0.09. The differential cross-sections as a function of the transverse momentum and rapidity of both the top quark and the top antiquark are measured at both the parton and particle levels. The transverse momentum and rapidity differential cross-sections of the accompanying jet from the t-channel scattering are measured at particle level. All measurements are compared to various Monte Carlo predictions as well as to fixed-order QCD calculations where available.
Publisher: Springer New York LLC
ISSN: 1434-6044
Source: European Physical Journal C
Link to Related Resource: http://dx.doi.org/10.1140/epjc/s10052-017-5061-9
Persistent Link: http://hdl.handle.net/10735.1/5728
Bibliographic Citation: Aaboud, M., G. Aad, B. Abbott, J. Abdallah, et al. 2017. "Fiducial, total and differential cross-section measurements of t-channel single top-quark production in pp collisions at 8 TeV using data collected by the ATLAS detector." European Physical Journal C 77(8), doi:10.1140/epjc/s10052-017-5061-9
Terms of Use: CC BY 4.0 (Attribution)
©2017 CERN, for the ATLAS Collaboration

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CC BY 4.0 (Attribution) Except where otherwise noted, this item's license is described as CC BY 4.0 (Attribution)