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Search for quark contact interactions in dijet angular distributions in pp collisions at root s=7 TeV measured with the ATLAS detector
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
Univ Michigan, Dept Phys.ORCID iD: 0000-0002-8913-0981
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2011 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 694, no 4/5, 327-345 p.Article in journal (Refereed) Published
Abstract [en]

Dijet angular distributions from the first LHC pp collisions at center-of-mass energy root 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.

Place, publisher, year, edition, pages
2011. Vol. 694, no 4/5, 327-345 p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-31467DOI: 10.1016/j.physletb.2010.10.021ISI: 000286494700009Scopus ID: 2-s2.0-78650304248OAI: oai:DiVA.org:kth-31467DiVA: diva2:404251
Funder
Swedish Research CouncilKnut and Alice Wallenberg Foundation
Note
QC 20110316Available from: 2011-03-16 Created: 2011-03-16 Last updated: 2017-12-11Bibliographically approved

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Strandberg, Jonas

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