Observation of Single Top Quark Production at D0

Details Observation of Single Top Quark Production at D0 Observation of Single Top Quark Production at D0

2009-11-05

arxiv.org/abs/0911.1150v1

AIP Conf.Proc.1200:666-669,2010

Physics

High Energy Physics

High Energy Physics - Experiment

4 pages, 2 figures; Proceedings paper of SUSY 2009 conference, Boston, MA, USA, June 2009 (to be published in AIP Conf.Proc.)

Scientific paper

10.1063/1.3327699

This paper presents the observation of the electroweak production of single top quarks in the D0 detector at the Fermilab Tevatron Collider at a center-of-mass energy of 1.96 TeV. Events containing an isolated electron or muon and missing transverse energy, together with jets originating from the fragmentation of b quarks are used to measure a cross section for single top quark production of sigma(ppbar -> tb + X, tqb + X) = 3.94 +- 0.88 pb. The probability to measure a cross section at this value or higher in the absence of signal is 2.5X10^-7, corresponding to a 5.0 standard deviation significance.

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