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Phys. Rev. Lett. 107, 091802 (2011) [15 pages]

Measurement of the t-Channel Single Top Quark Production Cross Section in pp Collisions at s=7  TeV

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S. Chatrchyan et al. (CMS Collaboration)
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Received 16 June 2011; published 25 August 2011

Electroweak production of the top quark is measured for the first time in pp collisions at s=7  TeV, using a data set collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 36  pb-1. With an event selection optimized for t-channel production, two complementary analyses are performed. The first one exploits the special angular properties of the signal, together with background estimates from the data. The second approach uses a multivariate analysis technique to probe the compatibility with signal topology expected from electroweak top-quark production. The combined measurement of the cross section is 83.6±29.8(stat+syst)±3.3(lumi)  pb, consistent with the standard model expectation.

Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

© 2011 CERN, for the CMS Collaboration

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.107.091802
DOI:
10.1103/PhysRevLett.107.091802
PACS:
13.85.Ni, 12.15.Ji, 14.65.Ha