Measurement of the tt¯ production cross section in the τ + jets final state in pp collisions at s√=8 TeV using the ATLAS detector
Date
2017
Authors
Aaboud, M.
Albert, Justin
Elliot, Alison A.
Fincke-Keeler, J.
Hamano, Kenji
Hill, Ewan Chin
Keeler, Richard
Kowalewski, Robert
Kuwertz, E. S.
Kwan, Tony
Journal Title
Journal ISSN
Volume Title
Publisher
Physical Review D
Abstract
A measurement of the inclusive pp→t¯t+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 σt¯t=239±29 pb, which is in agreement with the measurements in other final states and the theoretical predictions at this center-of-mass energy.
Description
Keywords
Particle interactions, Top quark
Citation
Aaboud, M.; Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Abeloos, B.; … & Zwalinski, L. (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), article 92003. DOI: 10.1103/PhysRevD.95.072003