A search for new physics in dijet mass and angular distributions in pp collisions at √s=7 TeV measured with the ATLAS detector
Entity
UAM. Departamento de Física TeóricaPublisher
Institute of Physics Publishing (IOP)Date
2011-05-24Citation
10.1088/1367-2630/13/5/053044
New Journal of Physics 13. (2011): 053044
ISSN
1367-2630 (print)DOI
10.1088/1367-2630/13/5/053044Editor's Version
http://dx.doi.org/10.1088/1367-2630/13/5/053044Subjects
FísicaNote
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMRights
© 2011 CERN for the benefit of the ATLAS CollaborationAbstract
A search for new interactions and resonances produced in LHC proton-proton (pp) collisions at a centre-of-mass energy √s = 7 TeV was performed with the ATLAS detector. Using a dataset with an integrated luminosity of 36 pb -1, dijet mass and angular distributions were measured up to dijet masses of ∼3.5TeV and were found to be in good agreement with Standard Model predictions. This analysis sets limits at 95% CL on various models for new physics: an excited quark is excluded for mass between 0.60 and 2.64 TeV, an axigluon hypothesis is excluded for axigluon masses between 0.60 and 2.10 TeV and quantum black holes are excluded in models with six extra space-time dimensions for quantum gravity scales between 0.75 and 3.67 TeV. Production cross section limits as a function of dijet mass are set using a simplified Gaussian signal model to facilitate comparisons with other hypotheses. Analysis of the dijet angular distribution using a novel technique simultaneously employing the dijet mass excludes quark contact interactions with a compositeness scale A below 9.5 TeV
Files in this item
Google Scholar:ATLAS Collaboration
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Aad, G.
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Arfaoui, S.
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Barreiro Alonso, Fernando
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Cantero, J.
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de la Torre, H.
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Peso Malagón, José del
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Glasman Kuguel, Claudia Beatriz
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Labarga Echeverría, Luis Alfonso
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Lagouri, T.
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March, Luis
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Nebot, Eduardo
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Rodier, Stephane
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Terrón Cuadrado, Juan
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