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Measurement of color flow in tt̅ events from pp̅ collisions at √s=1.96  TeV
Stockholm University, Faculty of Science, Department of Physics.
2011 (English)In: Physical Review D, ISSN 1550-7998, Vol. 83, no 9, 092002- p.Article in journal (Refereed) Published
Abstract [en]

We present the first measurement of the color representation of the hadronically decaying W boson in tt̅ events, from 5.3  fb-1 of integrated luminosity collected with the D0 experiment. A novel calorimeter-based vectorial variable, “jet pull,” is used, sensitive to the color-flow structure of the final state. We find that the fraction of uncolored W bosons is 0.56±0.42(stat+syst), in agreement with the standard model.

Place, publisher, year, edition, pages
2011. Vol. 83, no 9, 092002- p.
National Category
Subatomic Physics
Research subject
URN: urn:nbn:se:su:diva-62990DOI: 10.1103/PhysRevD.83.092002ISI: 000290440300001OAI: diva2:446298
Swedish Research Council
Publikationen har totalt 425 författare, V. Abazov et al.Available from: 2011-10-06 Created: 2011-10-06 Last updated: 2012-01-26Bibliographically approved

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