Evidence for Electroweak Production of W±W±jj in pp collisions at √s =8 TeV with the ATLAS Detector

This Letter presents the first study of W±W±jj, same-electric-charge diboson production in association with two jets, using 20.3 fb-1 of proton-proton collision data at √s=8 TeV recorded by the ATLAS detector at the Large Hadron Collider. Events with two...

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Autores principales:	Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2014
Materias:	Ciencias Exactas Física proton-proton collision ATLAS detector Large hadron collider electroweak production
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/85126
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-85126
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 collision ATLAS detector Large hadron collider electroweak production
spellingShingle	Ciencias Exactas Física proton-proton collision ATLAS detector Large hadron collider electroweak production Alconada Verzini, María Josefina Alonso, Francisco Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo Evidence for Electroweak Production of W<sup>±</sup>W<sup>±</sup>jj in pp collisions at √s =8 TeV with the ATLAS Detector
topic_facet	Ciencias Exactas Física proton-proton collision ATLAS detector Large hadron collider electroweak production
description	This Letter presents the first study of W<sup>±</sup>W<sup>±</sup>jj, same-electric-charge diboson production in association with two jets, using 20.3 fb-1 of proton-proton collision data at √s=8 TeV recorded by the ATLAS detector at the Large Hadron Collider. Events with two reconstructed same-charge leptons (e<sup>±</sup>e<sup>±</sup>, e<sup>±</sup>μ<sup>±</sup>, and μ<sup>±</sup>μ<sup>±</sup>) and two or more jets are analyzed. Production cross sections are measured in two fiducial regions, with different sensitivities to the electroweak and strong production mechanisms. First evidence for W<sup>±</sup>W<sup>±</sup>jj production and electroweak-only W<sup>±</sup>W<sup>±</sup>jj production is observed with a significance of 4.5 and 3.6 standard deviations, respectively. The measured production cross sections are in agreement with standard model predictions. Limits at 95% confidence level are set on anomalous quartic gauge couplings.
format	Articulo Articulo
author	Alconada Verzini, María Josefina Alonso, Francisco Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo
author_facet	Alconada Verzini, María Josefina Alonso, Francisco Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo
author_sort	Alconada Verzini, María Josefina
title	Evidence for Electroweak Production of W<sup>±</sup>W<sup>±</sup>jj in pp collisions at √s =8 TeV with the ATLAS Detector
title_short	Evidence for Electroweak Production of W<sup>±</sup>W<sup>±</sup>jj in pp collisions at √s =8 TeV with the ATLAS Detector
title_full	Evidence for Electroweak Production of W<sup>±</sup>W<sup>±</sup>jj in pp collisions at √s =8 TeV with the ATLAS Detector
title_fullStr	Evidence for Electroweak Production of W<sup>±</sup>W<sup>±</sup>jj in pp collisions at √s =8 TeV with the ATLAS Detector
title_full_unstemmed	Evidence for Electroweak Production of W<sup>±</sup>W<sup>±</sup>jj in pp collisions at √s =8 TeV with the ATLAS Detector
title_sort	evidence for electroweak production of w<sup>±</sup>w<sup>±</sup>jj in pp collisions at √s =8 tev with the atlas detector
publishDate	2014
url	http://sedici.unlp.edu.ar/handle/10915/85126
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Evidence for Electroweak Production of W<sup>±</sup>W<sup>±</sup>jj in pp collisions at √s =8 TeV with the ATLAS Detector

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