Search for quark contact interactions in dijet angular distributions in pp collisions at root s=7 TeV measured with the ATLAS detectorVisa övriga samt affilieringar
2011 (Engelska)Ingår i: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 694, nr 4-5, s. 327-345Artikel i tidskrift (Refereegranskat) 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.
Ort, förlag, år, upplaga, sidor
2011. Vol. 694, nr 4-5, s. 327-345
Nyckelord [en]
ATLAS, LHC, 7 TeV, Dijets angular distributions, Quark compositeness, Contact interactions
Nationell ämneskategori
Fysik
Identifikatorer
URN: urn:nbn:se:uu:diva-147862DOI: 10.1016/j.physletb.2010.10.021ISI: 000286494700009OAI: oai:DiVA.org:uu-147862DiVA, id: diva2:400997
Anmärkning
ATLAS Collaboration, for complete list of authors see http://dx.doi.org/10.1016/j.physletb.2010.10.021
2011-03-012011-03-012022-01-28Bibliografiskt granskad