Measurement of the t-channel single top quark production cross section

Collaboration, D0 and Bertram, Iain and Borissov, Guennadi and Fox, Harald and Williams, Mark and Ratoff, Peter and Love, Peter and Rakitin, Alexander and Sopczak, Andre (2010) Measurement of the t-channel single top quark production cross section. Physics Letters B, 682 (4-5). pp. 363-369. ISSN 0370-2693

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Abstract

The D0 collaboration reports direct evidence for electroweak production of single top quarks through the t-channel exchange of a virtual W boson. This is the first analysis to isolate an individual single top quark production channel. We select events containing an isolated electron or muon, missing transverse energy, and two, three or four jets from 2.3 fb^-1 of ppbar collisions at the Fermilab Tevatron Collider. One or two of the jets are identified as containing a b hadron. We combine three multivariate techniques optimized for the t-channel process to measure the t- and s-channel cross sections simultaneously. We measure cross sections of 3.14 +0.94 -0.80 pb for the t-channel and 1.05 +-0.81 pb for the s-channel. The measured t-channel result is found to have a significance of 4.8 standard deviations and is consistent with the standard model prediction.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Additional Information:
7 pages, 6 figures
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
63723
Deposited By:
Deposited On:
25 Apr 2013 10:24
Refereed?:
Yes
Published?:
Published
Last Modified:
23 Sep 2020 01:26