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

Abstract: The cross section for the production of single top quarks in the t channel is measured in proton?proton collisions at 13TeV with the CMS detector at the LHC. The analyzed data correspond to an integrated luminosity of 2.2fb?1. 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 238±13(stat)±29(syst) pb and a ratio of top quark and top antiquark production of Rt-ch.=1.81±0.18(stat)±0.15(syst). From the total cross section the absolute value of the CKM matrix element Vtb is calculated to be 1.05±0.07(exp)±0.02(theo). All results are in agreement with the standard model predictions.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

Fuente: Physics Letters B 772 (2017) 752-776

Editorial: Elsevier

Fecha de publicación: 01/09/2017

Nº de páginas: 25

Tipo de publicación: Artículo de Revista

ISSN: 0370-2693,1873-2445

Url de la publicación: https://doi.org/10.1016/j.physletb.2017.07.047

### Autores/as

SIRUNYAN, A. M.

JUAN RAMON CASTIÑEIRAS DE SAA

MARCOS FERNANDEZ GARCIA

JUAN GARCIA FERRERO

MARIA AMPARO LOPEZ VIRTO