Search for new physics in the dijet mass distribution using 1 fb<sup>-1</sup> of pp collision data at √s = 7 TeV collected by the ATLAS detector

Invariant mass distributions of jet pairs (dijets) produced in LHC proton–proton collisions at a centre-ofmass energy √s = 7 TeV have been studied using a data set corresponding to an integrated luminosity of 1.0 fb<sup>-1</sup> recorded in 2011 by ATLAS. Dijet masses up to ∼4 TeV are ob...

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Guardado en:
Detalles Bibliográficos
Autores principales: Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín F., The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Ciencias Exactas
Física
dijets
proton-proton collisions
ATLAS detector
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/80230
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
Descripción
Sumario:Invariant mass distributions of jet pairs (dijets) produced in LHC proton–proton collisions at a centre-ofmass energy √s = 7 TeV have been studied using a data set corresponding to an integrated luminosity of 1.0 fb<sup>-1</sup> recorded in 2011 by ATLAS. Dijet masses up to ∼4 TeV are observed in the data, and no evidence of resonance production over background is found. Limits are set at 95% C.L. for several new physics hypotheses: excited quarks are excluded for masses below 299 TeV, axigluons are excluded for masses below 3.32 TeV, and colour octet scalar resonances are excluded for masses below 1.92 TeV.

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