Measurement of color flow in tt̅ events from pp̅ collisions at √s=1.96 TeV

Abazov, V. M. ; Abbott, B. ; Acharya, B. S. ; Adams, M. ; Adams, T. ; Mondal, N. K. ; et., al (2011) Measurement of color flow in tt̅ events from pp̅ collisions at √s=1.96 TeV Physical Review D - Particles and Fields, 83 (9). 092002_1-092002_7. ISSN 0556-2821

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Official URL: http://prd.aps.org/abstract/PRD/v83/i9/e092002

Related URL: http://dx.doi.org/10.1103/PhysRevD.83.092002

Abstract

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.

Item Type:Article
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Deposited On:27 Mar 2012 08:23
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