Search for anomalous electroweak production of WW / WZ in association with a high-mass dijet system in pp collisions at √s = 8 TeV with the ATLAS detector

A search is presented for anomalous quartic gauge boson couplings in vector-boson scattering. The data for the analysis correspond to 20.2 fb<sup>-1</sup> of √s = 8 TeV pp collisions and were collected in 1972 by the ATLAS experiment at the Large Hadron Collider. The search looks for the...

Descripción completa

Detalles Bibliográficos
Autores: Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Hoya, Joaquín, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:Argentina
Institución:Universidad Nacional de La Plata
Repositorio:SEDICI (UNLP)
Idioma:inglés
OAI Identifier:oai:sedici.unlp.edu.ar:10915/87573
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/87573
Access Level:acceso abierto
Palabra clave:Ciencias Exactas
Física
proton-proton collisions
ATLAS detector
Descripción
Sumario:A search is presented for anomalous quartic gauge boson couplings in vector-boson scattering. The data for the analysis correspond to 20.2 fb<sup>-1</sup> of √s = 8 TeV pp collisions and were collected in 1972 by the ATLAS experiment at the Large Hadron Collider. The search looks for the production of WW or WZ boson pairs accompanied by a high-mass dijet system, with one W decaying leptonically and a W or Z decaying hadronically. The hadronically decaying W/Z is reconstructed as either two small-radius jets or one large-radius jet using jet substructure techniques. Constraints on the anomalous quartic gauge boson coupling parameters α<sub>4</sub> and α<sub>5</sub> are set by fitting the transverse mass of the diboson system, and the resulting 95% confidence intervals are -0.024 < α<sub>4</sub> < 0.030 and -0.028 < α<sub>5</sub> < 0.033.