Measurement of W+W− production in association with one jet in proton--proton collisions at s√=8 TeV with the ATLAS detector

The production of W boson pairs in association with one jet in pp collisions at s = 8 TeVis studied using data corresponding to an integrated luminosity of 20.3 fb −1 collected bythe ATLAS detector during 2012 at the CERN Large Hadron Collider. The cross section ismeasured in a fiducial phase-space...

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Detalles Bibliográficos
Autores: Aaboud, M., Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, Maria Teresa, Hoya, Joaquín, Monticelli, Fernando Gabriel, Wahlberg, Hernan Pablo, Bossio Sola, Jonathan David, Otero y Garzon, Gustavo Javier, Piegaia, Ricardo Nestor, Sacerdoti, Sabrina, Zhukov, K., Zibell. A., Zieminska, D., Zimine, N. I., Zimmermann, C., Zimmermann, S., Zinonos, Z., Zinser, M., Ziolkowski, M., Živković, L., Zobernig, G., Zoccoli, A., Nedden, M. zur, Zurzolo, G., Zwalinski, L., The ATLAS Collaboration
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/112463
Acceso en línea:http://hdl.handle.net/11336/112463
Access Level:acceso abierto
Palabra clave:W Boson
Jets
Production
ATLAS
LHC
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
Descripción
Sumario:The production of W boson pairs in association with one jet in pp collisions at s = 8 TeVis studied using data corresponding to an integrated luminosity of 20.3 fb −1 collected bythe ATLAS detector during 2012 at the CERN Large Hadron Collider. The cross section ismeasured in a fiducial phase-space region defined by the presence of exactly one electronand one muon, missing transverse momentum and exactly one jet with a transverse mo-mentum above 25 GeV and a pseudorapidity of |η| < 4.5. The leptons are required to haveopposite electric charge and to pass transverse momentum and pseudorapidity requirements.fid,1-jetThe fiducial cross section is found to be σ WW = 136 ± 6 (stat) ± 14 syst ± 3 (lumi) fb. Incombination with a previous measurement restricted to leptonic final states with no associ-ated jets, the fiducial cross section of WW production with zero or one jet is measured to befid,≤1-jetσ WW= 511 ± 9 (stat) ± 26 syst ± 10 (lumi) fb. The ratio of fiducial cross sections in finalstates with one and zero jets is determined to be 0.36 ± 0.05. Finally, a total cross sectionextrapolated from the fiducial measurement of WW production with zero or one associatedjet is reported.

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