Search for quark contact interactions in dijet angular distributions in <i>pp</i> collisions at √s = 7 TeV measured with the ATLAS detector

Dijet angular distributions from the first LHC <i>pp</i> collisions at center-of-mass energy √s = 7 TeV have been measured with the ATLAS detector. The dataset used for this analysis represents an integrated luminosity of 3.1 pb<sup>−1</sup>. Dijet χ distributions and central...

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Detalles Bibliográficos
Autores principales: Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín Fernando, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Física
ATLAS detector
la̵rge hadron collider
Dijets angular distributions
Quark compositeness
Contact interactions
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/79511
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
Descripción
Sumario:Dijet angular distributions from the first LHC <i>pp</i> collisions at center-of-mass energy √s = 7 TeV have been measured with the ATLAS detector. The dataset used for this analysis represents an integrated luminosity of 3.1 pb<sup>−1</sup>. Dijet χ distributions and centrality ratios have been measured up to dijet masses of 2.8 TeV, and found to be in good agreement with Standard Model predictions. Analysis of the χ distributions excludes quark contact interactions with a compositeness scale <i>Λ</i> below 3.4 TeV, at 95% confidence level, significantly exceeding previous limits.

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