Measurement of Dijet Angular Distributions and Search for Quark Compositeness in pp Collisions at [sqrt]s=7 TeV
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Khachatryan-2011-Measurement of Dijet.pdf
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Author(s)
Alver, Burak Han
Bendavid, Joshua L.
Busza, Wit
Butz, Erik M.
Cali, Ivan Amos
Chan, M.
Dutta, Valentina
Everaerts, Pieter Bruno Bart
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Alternative Title
Measurement of Dijet Angular Distributions and Search for Quark Compositeness in pp Collisions at √s=7 TeV
Date Issued
May 2011
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
V. Khachatryan et al. (CMS Collaboration). "Measurement of Dijet Angular Distributions and Search for Quark Compositeness in pp Collisions at [sqrt]s=7 TeV." Phys. Rev. Lett. 106, 201804 (2011) [14 pages].
Version
Final published version
Abstract
Dijet angular distributions are measured over a wide range of dijet invariant masses in pp collisions at [sqrt]s=7 TeV, at the CERN LHC. The event sample, recorded with the CMS detector, corresponds to an integrated luminosity of 36 pb[superscript -1]. 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 Lambda+=5.6 TeV (Lambda-=6.7 TeV) for destructive (constructive) interference is obtained at the 95% confidence level.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.106.201804
