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Measurement of Dijet Angular Distributions at s=1.96 TeV and Searches for Quark Compositeness and Extra Spatial Dimensions
Univ Michigan, Ann Arbor, MI .ORCID iD: 0000-0002-8913-0981
2009 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 103, no 19, 191803- p.Article in journal (Refereed) Published
Abstract [en]

We present the first measurement of dijet angular distributions in pp collisions at s=1.96 TeV at the Fermilab Tevatron Collider. The measurement is based on a dataset corresponding to an integrated luminosity of 0.7 fb(-1) collected with the D0 detector. Dijet angular distributions have been measured over a range of dijet masses, from 0.25 TeV to above 1.1 TeV. The data are in good agreement with the predictions of perturbative QCD and are used to constrain new physics models including quark compositeness, large extra dimensions, and TeV(-1) scale extra dimensions. For all models considered, we set the most stringent direct limits to date.

Place, publisher, year, edition, pages
2009. Vol. 103, no 19, 191803- p.
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-72073DOI: 10.1103/PhysRevLett.103.191803ISI: 000271568200008OAI: diva2:487696
QC 20120131Available from: 2012-01-31 Created: 2012-01-31 Last updated: 2012-01-31Bibliographically approved

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