Measurements of the cross sections for the production of single top quarks and antiquarks in the tchannel, and their ratio, are presented for proton-proton collisions at a center-of-mass energy of 13TeV. The data set used was recorded in 2016 by the CMS detector at the LHC and corresponds to an integrated luminosity of 35.9fb−1. Events with one muon or electron are selected, and different categories of jet and bjet multiplicity and multivariate discriminators are applied to separate the signal from the background. The cross sections for the t-channel production of single top quarks and antiquarks are measured to be 130 ±1(stat) ±19(syst)pband 77 ±1(stat) ±12(syst)pb, respectively, and their ratio is 1.68 ±0.02(stat) ±0.05(syst). The results are in agreement with the predictions from the standard model.

(2020). Measurement of the single top quark and antiquark production cross sections in the tchannel and their ratio in proton-proton collisions at √s=13TeV [journal article - articolo]. In PHYSICS LETTERS. SECTION B. Retrieved from http://hdl.handle.net/10446/148497

Measurement of the single top quark and antiquark production cross sections in the tchannel and their ratio in proton-proton collisions at √s=13TeV

Re V.;Vai I.;
2020-01-01

Abstract

Measurements of the cross sections for the production of single top quarks and antiquarks in the tchannel, and their ratio, are presented for proton-proton collisions at a center-of-mass energy of 13TeV. The data set used was recorded in 2016 by the CMS detector at the LHC and corresponds to an integrated luminosity of 35.9fb−1. Events with one muon or electron are selected, and different categories of jet and bjet multiplicity and multivariate discriminators are applied to separate the signal from the background. The cross sections for the t-channel production of single top quarks and antiquarks are measured to be 130 ±1(stat) ±19(syst)pband 77 ±1(stat) ±12(syst)pb, respectively, and their ratio is 1.68 ±0.02(stat) ±0.05(syst). The results are in agreement with the predictions from the standard model.
articolo
2020
Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Dragicevic, M.; Ero, J.; Escalante Del Valle, A.; Fl...espandi
(2020). Measurement of the single top quark and antiquark production cross sections in the tchannel and their ratio in proton-proton collisions at √s=13TeV [journal article - articolo]. In PHYSICS LETTERS. SECTION B. Retrieved from http://hdl.handle.net/10446/148497
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10446/148497
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