English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/140548
COMPARTIR / IMPACTO:
Estadísticas
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:
Título

Measurements of tt‾ charge asymmetry using dilepton final states in pp collisions at √s = 8 TeV

AutorKhachatryan, V.; Cabrillo, I. J. ; Calderon, Alicia ; Castiñeiras De Saa, J. R.; Currás, Esteban ; Castro Manzano, P. de; Fernández, M. ; García-Ferrero, J. ; Gómez, G. ; López Virto, A. ; Marco, Jesús ; Marco, Rafael ; Martínez-Rivero, Celso ; Matorras, Francisco ; Piedra, Jonatan ; Rodrigo, Teresa ; Rodríguez Marrero, Ana Y. ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Trevisani, N. ; Vila, Iván ; Vilar, Rocío ; CMS Collaboration
Palabras claveCharge asymmetry
Top
CMS
Physics
Fecha de publicación2016
EditorElsevier
CitaciónPhysics Letters B 760: 365-386 (2016)
ResumenThe charge asymmetry in events is measured using dilepton final states produced in pp collisions at the LHC at √s = 8 TeV. The data sample, collected with the CMS detector, corresponds to an integrated luminosity of 19.5 fb−1. The measurements are performed using events with two oppositely charged leptons (electrons or muons) and two or more jets, where at least one of the jets is identified as originating from a bottom quark. The charge asymmetry is measured from differences in kinematic distributions, unfolded to the parton level, of positively and negatively charged top quarks and leptons. The tt and leptonic inclusive charge asymmetries are found to be 0.011 ± 0.011 (stat) ± 0.007 (syst) and 0.003±0.006 (stat)±0.003 (syst), respectively. These results, as well as charge asymmetry measurements made as a function of the invariant mass, rapidity, and transverse momentum of the tt system, are in agreement with predictions of the standard model.
DescripciónOpen Access funded by SCOAP³ - Sponsoring Consortium for Open Access Publishing in Particle Physics.-- et al.
Versión del editorhttp://dx.doi.org/10.1016/j.physletb.2016.07.006
URIhttp://hdl.handle.net/10261/140548
DOI10.1016/j.physletb.2016.07.006
Identificadoresdoi: 10.1016/j.physletb.2016.07.006
issn: 0370-2693
e-issn: 1873-2445
Aparece en las colecciones: (IFCA) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
asymmetry using dilepton.pdf801,73 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.