Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/139545
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Type: | Journal article |
Title: | Measurements of tt¯ differential cross-sections of highly boosted top quarks decaying to all-hadronic final states in pp collisions at √s =13 TeV using the ATLAS detector |
Other Titles: | Measurements of tt -bar differential cross-sections of highly boosted top quarks decaying to all-hadronic final states in pp collisions at root s =13 TeV using the ATLAS detector |
Author: | Aaboud, M. Aad, G. Abbott, B. Abdinov, O. Abeloos, B. Abidi, S.H. Abouzeid, O.S. Abraham, N.L. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B.S. Adachi, S. Adamczyk, L. Adelman, J. Adersberger, M. Adye, T. Affolder, A.A. Afik, Y. Agheorghiesei, C. et al. |
Citation: | Physical Review D, 2018; 98(1):012003-1-012003-39 |
Publisher: | American Physical Society |
Issue Date: | 2018 |
ISSN: | 2470-0010 2470-0029 |
Statement of Responsibility: | M. Aaboud ... D. Duvnjak ... P. Jackson ... J. L. Oliver ... A. Petridis ... M. J. White ... et al. (ATLAS Collaboration) |
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 pT>500 GeV and a second with pT>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 χ2 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. |
Description: | Published 25 July 2018 |
Rights: | © 2018 CERN, for the ATLAS Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. |
DOI: | 10.1103/PhysRevD.98.012003 |
Published version: | http://dx.doi.org/10.1103/physrevd.98.012003 |
Appears in Collections: | Physics publications |
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hdl_139545.pdf | Published version | 1.9 MB | Adobe PDF | View/Open |
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