%0 Journal Article %T Search for quark contact interactions in dijet angular distributions in pp collisions at sqrt(s)=7 TeV measured with the ATLAS detector %A ATLAS Collaboration (Aad, G. et al %A Amoros, G. %A Cabrera Urban, S. %A Castillo Gimenez, V. %A Costa, M. J. %A Escobar, C. %A Ferrer, A. %A Fuster, J. %A Garcia, C. %A Gonzalez de la Hoz, S. %A Hernandez Jimenez, Y. %A Higon-Rodriguez, E. %A Irles Quiles, A. %A Kaci, M. %A Lacasta, C. %A Lacuesta, V. R. %A Marti-Garcia, S. %A Miñano, M. %A Mitsou, V. A. %A Moles-Valls, R. %A Moreno Llacer, M. %A Oliver Garcia, E. %A Perez Garcia-Estañ, M. T. %A Ros, E. %A Salt, J. %A Solans, C. A. %A Sanchez, J. %A Torro Pastor, E. %A Valladolid Gallego, E. %A Valls Ferrer, J. A. %A Villaplana Perez, M. %A Vos, M. %A Wildauer, A. %J Physics Letters B %D 2011 %V 694 %N 4-5 %I Elsevier Science Bv %@ 0370-2693 %G English %F ATLASCollaborationAad_etal2011 %O ISI:000286494700009 %O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=581), last updated on Thu, 25 Aug 2011 13:01:57 +0000 %X Dijet angular distributions from the first LHC pp collisions at center-of-mass energy root s = 7 TeV have been measured with the ATLAS detector. The dataset used for this analysis represents an integrated luminosity of 3.1 pb(-1). Dijet chi 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 chi distributions excludes quark contact interactions with a compositeness scale Lambda below 3.4 TeV, at 95% confidence level, significantly exceeding previous limits. %K ATLAS %K LHC %K 7 TeV %K Dijets angular distributions %K Quark compositeness %K Contact interactions %R 10.1016/j.physletb.2010.10.021 %U http://arxiv.org/abs/arXiv:1009.5069 %U https://doi.org/10.1016/j.physletb.2010.10.021 %P 327-345