Artículo

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.; Abdel Khalek, S.; Abdinov, O.; Alconada Verzini, María JosefinaIcon ; Alonso, FranciscoIcon ; Arduh, Francisco AnuarIcon ; Dova, Maria TeresaIcon ; Monticelli, Fernando GabrielIcon ; Wahlberg, Hernan PabloIcon ; Otero y Garzon, Gustavo JavierIcon ; Piegaia, Ricardo NestorIcon ; Reisin, Hernan DiegoIcon ; Sacerdoti, SabrinaIcon ; Zieminska, D.; Zimine, N. I.; Zimmermann, C.; Zimmermann, R.; Zimmermann, S.; Zimmerman, S.; Zinonos, Z.; Zinser, M.; Ziolkowski, M.; Živković, L.; Zobernig, G.; Zoccoli, A.; Nedden, M. zur; Zurzolo,; Zutshi, V. G.; Zwalinski, L.; The ATLAS Collaboration
Fecha de publicación: 05/2015
Editorial: Springer
Revista: Journal of High Energy Physics
ISSN: 1126-6708
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:

Resumen

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 centreof-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: AℓℓC based on the identified charged leptons, and Att¯C , based on the reconstructed tt final state. The asymmetries are measured to be AℓℓC=0.024±0.015(stat.)±0.009(syst.), Att¯C=0.021±0.025(stat.)±0.017(syst.).
Palabras clave: Atlas , Lhc
 
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/57505
DOI: http://dx.doi.org/10.1007/JHEP05(2015)061
URL: https://link.springer.com/article/10.1007%2FJHEP05%282015%29061
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Citación
Aad, G.; Abbott, B.; Abdallah, J.; Abdel Khalek, S.; Abdinov, O.; et al.; Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at √s = 7 TeV using the ATLAS detector; Springer; Journal of High Energy Physics; 61; 5-2015
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