Measurement of the top quark pair production cross section in pp collisions at √s = 7 TeV in dilepton final states with ATLAS

A measurement of the production cross section of top quark pairs (tt) in proton-proton collisions at a center-of-mass energy of 7 TeV recorded with the ATLAS detector at the Large Hadron Collider is reported. Candidate events are selected in the dilepton topology with large missing transverse energy...

Descripción completa

Detalles Bibliográficos
Autores principales: Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín F., The ATLAS Collaboration
Formato: Articulo
Lenguaje:Español
Publicado: 2011
Materias:
Ciencias Exactas
Física
top physics
heavy quark production
ATLAS detector
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/80206
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-80206
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Ciencias Exactas
Física
top physics
heavy quark production
ATLAS detector
spellingShingle Ciencias Exactas
Física
top physics
heavy quark production
ATLAS detector
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
Measurement of the top quark pair production cross section in pp collisions at √s = 7 TeV in dilepton final states with ATLAS
topic_facet Ciencias Exactas
Física
top physics
heavy quark production
ATLAS detector
description A measurement of the production cross section of top quark pairs (tt) in proton-proton collisions at a center-of-mass energy of 7 TeV recorded with the ATLAS detector at the Large Hadron Collider is reported. Candidate events are selected in the dilepton topology with large missing transverse energy and at least two jets. Using a data sample corresponding to an integrated luminosity of 35 pb<sup>-1</sup>, a tt production cross section σ<sub>tt</sub> = 177 ± 20(stat.) ± 14(syst.) ± 7(lum.) pb is measured for an assumed top quark mass of m<sub>t</sub> = 172.5 GeV. A second measurement requiring at least one jet identified as coming from a b quark yields a comparable result, demonstrating that the dilepton final states are consistent with being accompanied by b-quark jets. These measurements are in good agreement with Standard Model predictions
format Articulo
Articulo
author Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author_facet Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author_sort Anduaga, Xabier Sebastián
title Measurement of the top quark pair production cross section in pp collisions at √s = 7 TeV in dilepton final states with ATLAS
title_short Measurement of the top quark pair production cross section in pp collisions at √s = 7 TeV in dilepton final states with ATLAS
title_full Measurement of the top quark pair production cross section in pp collisions at √s = 7 TeV in dilepton final states with ATLAS
title_fullStr Measurement of the top quark pair production cross section in pp collisions at √s = 7 TeV in dilepton final states with ATLAS
title_full_unstemmed Measurement of the top quark pair production cross section in pp collisions at √s = 7 TeV in dilepton final states with ATLAS
title_sort measurement of the top quark pair production cross section in pp collisions at √s = 7 tev in dilepton final states with atlas
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/80206
work_keys_str_mv AT anduagaxabiersebastian measurementofthetopquarkpairproductioncrosssectioninppcollisionsats7tevindileptonfinalstateswithatlas
AT dovamariateresa measurementofthetopquarkpairproductioncrosssectioninppcollisionsats7tevindileptonfinalstateswithatlas
AT monticellifernandogabriel measurementofthetopquarkpairproductioncrosssectioninppcollisionsats7tevindileptonfinalstateswithatlas
AT tripianamartinf measurementofthetopquarkpairproductioncrosssectioninppcollisionsats7tevindileptonfinalstateswithatlas
AT theatlascollaboration measurementofthetopquarkpairproductioncrosssectioninppcollisionsats7tevindileptonfinalstateswithatlas
bdutipo_str Repositorios
_version_ 1764820486674448384

Ejemplares similares