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Title

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

CollaborationWith : Abdelalim Aly, Ahmed Aly / Alexandre, Gauthier / Backes, Moritz / Bell, Paul / Bell, William / Berglund, Frida Elina / Blondel, Alain / Bucci, Francesca / Clark, Allan Geoffrey / Dao, Valerio / Diaz-Gomez, Manuel / Efthymiopoulos, Ilias / Ferrere, Didier / Gadomski, Szymon / Garcia Navarro, Jose Enrique / Gaumer, Olivier / Gonzalez Sevilla, Sergio / Goulette, Marc / Hamilton, Andrew / Leger, Annie / Lister, Alison / Macina-Buono, Daniela / Mangin-Brinet, Mariane / Martin Dit Latour, Bertrand / Mikulec, Bettina / Moneta, Lorenzo / Mora Herrera, Maria Clemencia Rosario / Morone, Maria Cristina / Orellana, Frédérik / Pasztor, Arpad / Pohl, Martin / Robichaud-Veronneau, Andrée / Rosselet, Laurent / Urquijo, Phillip / Wu, Xin
Published in Physics Letters. B. 2011, vol. 694, no. 4-5, p. 327-345
Abstract Dijet angular distributions from the first LHC pp 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−13.1 pb−1. 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 Λ below 3.4 TeV, at 95% confidence level, significantly exceeding previous limits.
Keywords ATLASLHC7 TeVDijets angular distributionsQuark compositenessContact interactions
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ATLAS COLLABORATION. Search for quark contact interactions in dijet angular distributions in pp collisions at √s=7 TeV measured with the ATLAS detector. In: Physics Letters. B, 2011, vol. 694, n° 4-5, p. 327-345. doi: 10.1016/j.physletb.2010.10.021 https://archive-ouverte.unige.ch/unige:41586

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Deposited on : 2014-11-07

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