ATLAS Collaboration, .;
Aaboud, M;
Aad, G;
Abbott, B;
Abdinov, O;
Abeloos, B;
Abidi, SH;
... Zwalinski, L; + view all
(2018)
Measurements of t(t)over-bar differential cross-sections of highly boosted top quarks decaying to all-hadronic final states in pp collisions at root s=13 Te V using the ATLAS detector.
Physical Review D
, 98
(1)
, Article 012003. 10.1103/PhysRevD.98.012003.
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Abstract
Measurements are made of differential cross-sections of highly boosted pair-produced top quarks as a function of top-quark and t ¯ t system kinematic observables using proton-proton collisions at a center-of-mass energy of √ s = 13 TeV . The data set corresponds to an integrated luminosity of 36.1 fb − 1 , recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. Events with two large-radius jets in the final state, one with transverse momentum p T > 500 GeV and a second with p T > 350 GeV , are used for the measurement. The top-quark candidates are separated from the multijet background using jet substructure information and association with a b -tagged jet. The measured spectra are corrected for detector effects to a particle-level fiducial phase space and a parton-level limited phase space, and are compared to several Monte Carlo simulations by means of calculated χ 2 values. The cross-section for t ¯ t production in the fiducial phase-space region is 292 ± 7 ( stat ) ± 71 ( syst ) fb , to be compared to the theoretical prediction of 384 ± 36 fb .
| Type: | Article |
|---|---|
| Title: | Measurements of t(t)over-bar differential cross-sections of highly boosted top quarks decaying to all-hadronic final states in pp collisions at root s=13 Te V using the ATLAS detector |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.98.012003 |
| Publisher version: | https://doi.org/10.1103/PhysRevD.98.012003 |
| Language: | English |
| Additional information: | © 2018 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/). Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10055355 |
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