Abstract
Dijet angular distributions from the first LHC pp collisions at center-of-mass energy sqrt(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.
Original language | English |
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Pages (from-to) | 327-345 |
Number of pages | 19 |
Journal | Physics Letters B |
Volume | B694 |
DOIs | |
Publication status | Published - 2011 |
Keywords / Materials (for Non-textual outputs)
- hep-ex