# Cross section measurement of t-channel single top quark production in pp collisions at sqrt(s) = 13 TeV

Abstract : The cross section for the production of single top quarks in the t channel is measured in proton-proton collisions at 13 TeV with the CMS detector at the LHC. The analyzed data correspond to an integrated luminosity of 2.3 inverse-femtobarns. The event selection requires one muon and two jets where one of the jets is identified as originating from a bottom quark. Several kinematic variables are then combined into a multivariate discriminator to distinguish signal from background events. A fit to the distribution of the discriminating variable yields a total cross section of 232 +/- 13 (stat) +/- 28 (syst) pb and a ratio of top quark and top antiquark production of R[t-ch.] = \$ 1.81 +/- 0.18 (stat) +/- 0.15 (syst). From the total cross section the absolute value of the CKM matrix element V[tb] is calculated to be 1.03 +/- 0.07 (exp) +/- 0.02 (theo). All results are in agreement with the standard model predictions.
Type de document :
Pré-publication, Document de travail
Submitted to Phys. Lett. B. All figures and tables can be found at http://cms-results.web.cern.ch.. 2016

http://hal.in2p3.fr/in2p3-01376035
Contributeur : Dominique Girod <>
Soumis le : mardi 4 octobre 2016 - 10:23:11
Dernière modification le : mardi 16 janvier 2018 - 16:25:06

### Identifiants

• HAL Id : in2p3-01376035, version 1
• ARXIV : 1610.00678

### Citation

A.M. Sirunyan, M. Besançon, F. Couderc, M. Dejardin, D. Denegri, et al.. Cross section measurement of t-channel single top quark production in pp collisions at sqrt(s) = 13 TeV. Submitted to Phys. Lett. B. All figures and tables can be found at http://cms-results.web.cern.ch.. 2016. 〈in2p3-01376035〉

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