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Measurement of the ratio of the p(p)over-bar -> W + c-jet cross section to the inclusive p(p)over-bar -> W + jets cross section
University of Chicago.ORCID iD: 0000-0002-8913-0981
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Number of Authors: 534
2008 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 666, no 1, 23-30 p.Article in journal (Refereed) Published
Abstract [en]

We present a measurement of the fraction of inclusive W +jets events produced with net charm quantum number 11, denoted W + c-jet, in p collisions at root s = 1.96 TeV using approximately 1 fb(-1) of data collected by the DO detector at the Fermilab Tevatron Collider. We identify the W +jets events via the leptonic W boson decays. Candidate W + c-jet events are selected by requiring a jet containing a muon in association with a reconstructed W boson and exploiting the charge correlation between this muon and W boson decay lepton to perform a nearly model-independent background subtraction. We measure the fraction of W + c-jet events in the inclusive W +jets sample for jet PT > 20 GeV and pseudorapidity |eta| < 2.5 to be 0.074 +/- 0.019(stat.) +/-(0.012)(0.014) (syst.), in agreement with theoretical predictions. The probability that background fluctuations could produce the observed fraction of W + c-jet events is estimated to be 2.5 x 10(-4), which corresponds to a 3.5 sigma statistical significance.

Place, publisher, year, edition, pages
2008. Vol. 666, no 1, 23-30 p.
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Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-47331DOI: 10.1016/j.physletb.2008.06.067ISI: 000258724500005Scopus ID: 2-s2.0-47949113122OAI: oai:DiVA.org:kth-47331DiVA: diva2:454779
Note
QC 20111108 Author Count: 534Available from: 2011-11-08 Created: 2011-11-08 Last updated: 2017-12-08Bibliographically approved

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Strandberg, Jonas

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CiteExportLink to record
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Citation style
  • apa
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  • ieee
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  • vancouver
  • Other style
More styles
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  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
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  • Other locale
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Output format
  • html
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  • asciidoc
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