Measurement of the t-channel single top quark production cross section in pp collisions at √s=7 TeV
Affiliation
- 1 Yerevan Physics Institute, Yerevan, Armenia.
- PMID: 21929225
- DOI: 10.1103/PhysRevLett.107.091802
Measurement of the t-channel single top quark production cross section in pp collisions at √s=7 TeV
Authors
Affiliation
- 1 Yerevan Physics Institute, Yerevan, Armenia.
- PMID: 21929225
- DOI: 10.1103/PhysRevLett.107.091802
Abstract
Electroweak production of the top quark is measured for the first time in pp collisions at √=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.
© 2011 American Physical Society
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