Measurement of W ± Z production in proton-proton collisions at √ s = 7 TeV with the ATLAS detector

A study of W ± Z production in proton-proton collisions at √ s = 7 TeV is presented using data corresponding to an integrated luminosity of 4.6 fb−1 collected with the ATLAS detector at the Large Hadron Collider in 2011. In total, 317 candidates, with a background expectation of 68 ± 10 events, are...

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Autores principales: Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín F., The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Ciencias Exactas
Física
proton-proton collisions
z boson
ATLAS detector
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/78702
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-78702
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
proton-proton collisions
z boson
ATLAS detector
spellingShingle Ciencias Exactas
Física
proton-proton collisions
z boson
ATLAS detector
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
Measurement of W ± Z production in proton-proton collisions at √ s = 7 TeV with the ATLAS detector
topic_facet Ciencias Exactas
Física
proton-proton collisions
z boson
ATLAS detector
description A study of W ± Z production in proton-proton collisions at √ s = 7 TeV is presented using data corresponding to an integrated luminosity of 4.6 fb−1 collected with the ATLAS detector at the Large Hadron Collider in 2011. In total, 317 candidates, with a background expectation of 68 ± 10 events, are observed in double-leptonic decay final states with electrons, muons and missing transverse momentum. The total cross-section is determined to be σtot WZ = 19.0+1.4 −1.3(stat.) ± 0.9(syst.) ± 0.4(lumi.) pb, consistent with the Standard Model expectation of 17.6+1.1 −1.0 pb. Limits on anomalous triple gauge boson couplings are derived using the transverse momentum spectrum of Z bosons in the selected events. The cross-section is also presented as a function of Z boson transverse momentum and diboson invariant mass.
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 W ± Z production in proton-proton collisions at √ s = 7 TeV with the ATLAS detector
title_short Measurement of W ± Z production in proton-proton collisions at √ s = 7 TeV with the ATLAS detector
title_full Measurement of W ± Z production in proton-proton collisions at √ s = 7 TeV with the ATLAS detector
title_fullStr Measurement of W ± Z production in proton-proton collisions at √ s = 7 TeV with the ATLAS detector
title_full_unstemmed Measurement of W ± Z production in proton-proton collisions at √ s = 7 TeV with the ATLAS detector
title_sort measurement of w ± z production in proton-proton collisions at √ s = 7 tev with the atlas detector
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/78702
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