Measurement of the t-Channel Single Top Quark Production Cross Section in pp Collisions at root s=7 TeV
- Chatrchyan, S.
- Khachatryan, V.
- Sirunyan, A. M.
- Tumasyan, A.
- Adam, W.
- Bergauer, T.
- Dragicevic, M.
- Eroe, J.
- Fabjan, C.
- Friedl, M.
- Fruehwirth, R.
- Ghete, V. M.
- Hammer, J.
- Haensel, S.
- Hoch, M.
- Hoermann, N.
- Hrubec, J.
- Jeitler, M.
- Kiesenhofer, W.
- Krammer, M.
- Liko, D.
- Mikulec, I.
- Pernicka, M.
- Rohringer, H.
- Schoefbeck, R.
- Strauss, J.
- Taurok, A.
- Teischinger, F.
- Wagner, P.
- Waltenberger, W.
- Walzel, G.
- Widl, E.
- Wulz, C-E.
- Mossolov, V.
- Shumeiko, N.
- Gonzalez, J. Suarez
- Bansal, S.
- Benucci, L.
- De Wolf, E. A.
- Janssen, X.
- Mae
DOIAbstract
Electroweak production of the top quark is measured for the first time in pp collisions at root 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.http:...