Allbrooke, B M M, Asquith, L, Cerri, A, Chavez Barajas, C A, De Santo, A, Potter, C T, Salvatore, F, Santoyo Castillo, I, Suruliz, K, Sutton, M R, Vivarelli, I and others (ATLAS collaboration), (2015) Measurement of the charge asymmetry in dileptonic Decays of top quark pairs in pp collisions at √ s = 7 TeV using the ATLAS detector. Journal of High Energy Physics, 61. ISSN 1029-8479
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Abstract
A measurement of the top-antitop (tt) charge asymmetry is presented using data corresponding to an integrated luminosity of 4.6 fb −1 of LHC pp collisions at a centre- of-mass energy of 7 TeV collected by the ATLAS detector. Events with two charged leptons, at least two jets and large missing transverse momentum are selected. Two observables are studied: A tt/C, based on the reconstructed tt final state. The asymmetries are measured to be
A ll/C = 0.024 +/- 0.015 (stat.) +/- 0.009 (syst.)
Att/C = 0.021 +/- 0.025 (stat.) +/- 0.017 (syst.)
The measured values are in agreement with the Standard Model predictions.
Item Type: | Article |
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Keywords: | Hadron-Hadron Scattering, Top physics |
Schools and Departments: | School of Mathematical and Physical Sciences > Physics and Astronomy |
Subjects: | Q Science > QC Physics |
Depositing User: | Richard Chambers |
Date Deposited: | 21 Jul 2015 06:02 |
Last Modified: | 07 Mar 2017 11:54 |
URI: | http://srodev.sussex.ac.uk/id/eprint/55647 |
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