English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/110232
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Measurements of the tt̄ charge asymmetry using the dilepton decay channel in pp collisions at √s = 7 TeV

AuthorsChatrchyan, S.; Brochero Cifuentes, J. A. ; Cabrillo, I. J. ; Calderon, Alicia ; Chuang, S. H. ; Duarte Campderros, J. ; Fernández, M. ; Gómez, G. ; González Sánchez, J. ; Graziano, A. ; López Virto, A. ; Marco, Jesús ; Marco, Rafael ; Martínez-Rivero, Celso ; Matorras, Francisco ; Muñoz Sánchez, F. J. ; Piedra, Jonatan ; Rodrigo, Teresa ; Rodríguez Marrero, Ana Y. ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Vila, Iván ; Vilar, Rocío
Issue Date2014
PublisherSpringer
CitationJournal of High Energy Physics 4: 191 (2014)
AbstractThe tt̄ charge asymmetry in proton-proton collisions at s = 7TeV is measured using the dilepton decay channel (ee, eμ, or μμ). The data correspond to a total integrated luminosity of 5.0 fb-1, collected by the CMS experiment at the LHC. The tt̄ and lepton charge asymmetries, defined as the differences in absolute values of the rapidities between the reconstructed top quarks and antiquarks and of the pseudorapidities between the positive and negative leptons, respectively, are measured to be AC = -0.010 ± 0.017 (stat.) ± 0.008 (syst.) and AC lep = 0.009 ± 0.010 (stat.) ± 0.006 (syst.). The lepton charge asymmetry is also measured as a function of the invariant mass, rapidity, and transverse momentum of the tt̄ system. All measurements are consistent with the expectations of the standard model.
DescriptionOpen Access: This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0).-- et al.
Publisher version (URL)http://dx.doi.org/10.1007/JHEP04(2014)191
URIhttp://hdl.handle.net/10261/110232
DOI10.1007/JHEP04(2014)191
Identifiersdoi: 10.1007/JHEP04(2014)191
e-issn: 1029-8479
Appears in Collections:(IFCA) Artículos
Files in This Item:
File Description SizeFormat 
charge asymmetry using the dilepton.pdf570,68 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.