Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at s√=7 TeV using the ATLAS detector
2015 | journal article. A publication with affiliation to the University of Göttingen.
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Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at s√=7 TeV using the ATLAS detector
Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Aben, R.; Abolins, M. & AbouZeid, O. S. et al. (2015)
Journal of High Energy Physics, 61. DOI: https://doi.org/10.1007/JHEP05(2015)061
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Details
- Authors Group
- ATLAS Collaboration
The authors list is uncomplete: - Authors
- Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Aben, R.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; Abreu, H.; Abreu, R.; Zwalinski, L.
- Abstract
- A measurement of the top-antitop (t¯t) charge asymmetry is presented using data corresponding to an integrated luminosity of 4.6 fb−1 of LHC pp collisions at a centreof- mass energy of 7TeV 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`` C based on the identified charged leptons, and At¯t C , based on the reconstructed t¯t final state. The asymmetries are measured to be A`` C = 0.024 ± 0.015 (stat.) ± 0.009 (syst.) , At¯t C = 0.021 ± 0.025 (stat.) ± 0.017 (syst.) . The measured values are in agreement with the Standard Model predictions.
- Issue Date
- 2015
- Journal
- Journal of High Energy Physics
- Project
- info:eu-repo/grantAgreement/EC/FP7/246806/EU/European Particle physics Latin American NETwork/EPLANET
- Organization
- Fakultät für Physik
- ISSN
- 1029-8479
- Language
- German
