Measurement of the t-channel single top quark production cross section in pp collisions at sqrt(s) = 7 TeV

Details Measurement of the t-channel single top quark production cross section in pp collisions at sqrt(s) = 7 TeV Measurement of the t-channel single top quark production cross section in pp collisions at sqrt(s) = 7 TeV

2011-06-15

arxiv.org/abs/1106.3052v1

Phys.Rev.Lett.107:091802,2011

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

10.1103/PhysRevLett.107.091802

Electroweak production of the top quark is measured in pp collisions at sqrt(s) = 7 TeV, using a dataset collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 36 inverse picobarns. 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 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.

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