Please use this identifier to cite or link to this item:
http://bura.brunel.ac.uk/handle/2438/19592
Title: | Measurement of jet multiplicity distributions in t t-bar production in pp collisions at sqrt(s) = 7 TeV |
Authors: | Collaboration, CMS |
Issue Date: | 20-Aug-2004 |
Publisher: | Springer Verlag |
Citation: | The European Physical Journal C - Particles and Fields, 2014, 74 (3014), pp. 1 - 29 |
Abstract: | The normalised differential top quark-antiquark production cross section is measured as a function of the jet multiplicity in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC with the CMS detector. The measurement is performed in both the dilepton and lepton+jets decay channels using data corresponding to an integrated luminosity of 5.0 fb−1 . Using a procedure to associate jets to decay products of the top quarks, the differential cross section of the tt¯ production is determined as a function of the additional jet multiplicity in the lepton+jets channel. Furthermore, the fraction of events with no additional jets is measured in the dilepton channel, as a function of the threshold on the jet transverse momentum. The measurements are compared with predictions from perturbative quantum chromodynamics and no significant deviations are observed. |
URI: | http://bura.brunel.ac.uk/handle/2438/19592 |
DOI: | http://dx.doi.org/10.1140/epjc/s10052-014-3014-0 |
ISSN: | 1826-9869 http://dx.doi.org/10.1140/epjc/s10052-014-3014-0 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
Files in This Item:
File | Description | Size | Format | |
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FullText.pdf | 1.12 MB | Adobe PDF | View/Open |
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