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Measurement of the tt¯ production cross section in the τ+ jets final state in pp collisions at √s=8 TeV using the ATLAS detector

Barton, Adam Edward and Beattie, Michael and Bertram, Iain Alexander and Borissov, Guennadi and Bouhova-Thacker, Evelina Vassileva and Dearnaley, William and Fox, Harald and Grimm, Kathryn Ann Tschann and Henderson, Robert Charles William and Hughes, Gareth and Jones, Roger William Lewis and Kartvelishvili, Vakhtang and Long, Robin Eamonn and Love, Peter Allan and Muenstermann, Daniel Matthias Alfred and Parker, Adam Jackson and Skinner, Malcolm and Smizanska, Maria and Walder, James William and Wharton, Andy (2017) Measurement of the tt¯ production cross section in the τ+ jets final state in pp collisions at √s=8 TeV using the ATLAS detector. Physical Review D, 95 (7). ISSN 1550-7998

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Abstract

A measurement of the inclusive pp → tt¯ + X production cross section in the τ + jets final state using only the hadronic decays of the τ lepton is presented. The measurement is performed using 20.2 fb−1 of proton-proton collision data recorded at a center-of-mass energy of √s=8 TeV with the ATLAS detector at the Large Hadron Collider. The cross section is measured via a counting experiment by imposing a set of selection criteria on the identification and kinematic variables of the reconstructed particles and jets, and on event kinematic variables and characteristics. The production cross section is measured to be σtt¯ = 239 ± 29 pb, which is in agreement with the measurements in other final states and the theoretical predictions at this center-of-mass energy.

Item Type: Journal Article
Journal or Publication Title: Physical Review D
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 86916
Deposited By: ep_importer_pure
Deposited On: 03 Jul 2017 09:52
Refereed?: Yes
Published?: Published
Last Modified: 16 Oct 2018 05:06
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/86916

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