Abstract
Dijet angular distributions are measured over a wide range of dijet invariant masses in collisions at , at the CERN LHC. The event sample, recorded with the CMS detector, corresponds to an integrated luminosity of . The data are found to be in good agreement with the predictions of perturbative QCD, and yield no evidence of quark compositeness. With a modified frequentist approach, a lower limit on the contact interaction scale for left-handed quarks of () for destructive (constructive) interference is obtained at the 95% confidence level.
- Received 10 February 2011
DOI:https://doi.org/10.1103/PhysRevLett.106.201804
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© 2011 CERN, for the CMS Collaboration