Title
Measurement of dijet angular distributions and search for quark compositeness in pp collisions at <tex>$\sqrt{s}$</tex> = 7 TeV Measurement of dijet angular distributions and search for quark compositeness in pp collisions at <tex>$\sqrt{s}$</tex> = 7 TeV
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
New York, N.Y. ,
Subject
Physics
Source (journal)
Physical review letters. - New York, N.Y.
Volume/pages
106(2011) :20 , p. 1-14
ISSN
0031-9007
ISI
000290729800003
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Dijet angular distributions are measured over a wide range of dijet invariant masses in pp collisions at √s=7  TeV, at the CERN LHC. The event sample, recorded with the CMS detector, corresponds to an integrated luminosity of 36  pb-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 Λ+=5.6  TeV (Λ-=6.7  TeV) for destructive (constructive) interference is obtained at the 95% confidence level.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/67c327/1301fbec.pdf
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