Study of WWγ and WZγ production in pp collisions at s√=8 TeV and search for anomalous quartic gauge couplings with the ATLAS experiment

This paper presents a study of WWγ and WZγ triboson production using events from proton– proton collisions at a centre-of-mass energy of √ s = 8 TeV recorded with the ATLAS detector at the LHC and corresponding to an integrated luminosity of 20.2 fb−1 . The WWγ production cross-section is determined...

Descripción completa

Detalles Bibliográficos
Autores: Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, Maria Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernan Pablo, Otero y Garzon, Gustavo Javier, Piegaia, Ricardo Nestor, Bossio Sola, Jonathan David, Daneri, María Florencia, Devesa, Maria Roberta, Marceca, Gino, Sacerdoti, Sabrina, Zimine, N. I., Zimmermann, C., Zimmermann, S., Zinonos, Z., Zinser, M., Ziolkowski, M., Živković, L., Zobernig, G., Zoccoli, A., Zou, R., Nedden, M. zur, Zwalinski, L., The ATLAS Collaboration
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/60056
Acceso en línea:http://hdl.handle.net/11336/60056
Access Level:acceso abierto
Palabra clave:ATLAS
CERN
HEP
LHC
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
Descripción
Sumario:This paper presents a study of WWγ and WZγ triboson production using events from proton– proton collisions at a centre-of-mass energy of √ s = 8 TeV recorded with the ATLAS detector at the LHC and corresponding to an integrated luminosity of 20.2 fb−1 . The WWγ production cross-section is determined using a final state containing an electron, a muon, a photon, and neutrinos (eνµνγ). Upper limits on the production cross-section of the eνµνγ final state and the WWγ and WZγ final states containing an electron or a muon, two jets, a photon, and a neutrino (eν j jγ or µν j jγ) are also derived. The results are compared to the cross-sections predicted by the Standard Model at next-to-leading order in the strongcoupling constant. In addition, upper limits on the production cross-sections are derived in a fiducial region optimised for a search for new physics beyond the Standard Model. The results are interpreted in the context of anomalous quartic gauge couplings using an effective field theory. Confidence intervals at 95% confidence level are derived for the 14 coupling coefficients to which WWγ and WZγ production are sensitive

Similares en LA Referencia