Measurement of color flow in t(t)over-bar events from p(p)over-bar collisions at root s=1.96 TeV
2011 (English)In: Physical Review D - Particles, Fields, Gravitation and Cosmology, ISSN 1550-7998, Vol. 83, no 9, 092002- p.Article in journal (Refereed) Published
We present the first measurement of the color representation of the hadronically decaying W boson in t (t) over bar 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.
IdentifiersURN: urn:nbn:se:uu:diva-153942DOI: 10.1103/PhysRevD.83.092002ISI: 000290440300001OAI: oai:DiVA.org:uu-153942DiVA: diva2:419211