Measurements of the cross sections for the production of single topquarks and antiquarks in the t channel, and their ratio, are presentedfor proton-proton collisions at a center-of-mass energy of 13 TeV. Thedata set used was recorded in 2016 by the CMS detector at the LHC andcorresponds to an integrated luminosity of 35.9 fb(-1). Events with onemuon or electron are selected, and different categories of jet and b jetmultiplicity and multivariate discriminators are applied to separate thesignal from the background. The cross sections for the t-channelproduction of single top quarks and antiquarks are measured to be 130+/- 1(stat) +/- 19(syst) pb and 77 +/- 1(stat) +/- 12(syst) pb,respectively, and their ratio is 1.68 +/- 0.02(stat) +/- 0.05(syst). Theresults are in agreement with the predictions from the standard model.(C) 2019 The Author(s). Published by Elsevier B.V.
Measurement of the single top quark and antiquark production cross sections in the t channel and their ratio in proton-proton collisions at root s=13 TeV
Albergo, S.;Potenza, R.;Tricomi, A.;Tuve, C.;
2020-01-01
Abstract
Measurements of the cross sections for the production of single topquarks and antiquarks in the t channel, and their ratio, are presentedfor proton-proton collisions at a center-of-mass energy of 13 TeV. Thedata set used was recorded in 2016 by the CMS detector at the LHC andcorresponds to an integrated luminosity of 35.9 fb(-1). Events with onemuon or electron are selected, and different categories of jet and b jetmultiplicity and multivariate discriminators are applied to separate thesignal from the background. The cross sections for the t-channelproduction of single top quarks and antiquarks are measured to be 130+/- 1(stat) +/- 19(syst) pb and 77 +/- 1(stat) +/- 12(syst) pb,respectively, and their ratio is 1.68 +/- 0.02(stat) +/- 0.05(syst). Theresults are in agreement with the predictions from the standard model.(C) 2019 The Author(s). Published by Elsevier B.V.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
