Measurement of the inclusive tt¯ cross section in pp collisions at √s = 5.02 TeV using final states with at least one charged lepton
Loading...
Date
2018
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The top quark pair production cross section (\left({\sigma }{t\overline{t}}\right)) is measured for the first time in pp collisions at a center-of-mass energy of 5.02 TeV. The data were collected by the CMS experiment at the LHC and correspond to an integrated luminosity of 27.4 pb(^{−1}). The measurement is performed by analyzing events with at least one charged lepton. The measured cross section is ({\sigma }{t\overline{t}}) = 69.5 ± 6.1 (stat) ± 5.6 (syst) ± 1.6 (lumi) pb, with a total relative uncertainty of 12%. The result is in agreement with the expectation from the standard model. The impact of the presented measurement on the determination of the gluon distribution function is investigated.
Description
Keywords
Hadron-Hadron scattering (experiments), Top physics
Citation
Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., Brandstetter, J., Brondolin, E., Dragicevic, M., Erö, J., Flechl, M., Friedl, M., Frühwirth, R., Ghete, V. M., Grossmann, J., Hrubec, J., Jeitler, M., König, A., … Woods, N. (2018). Measurement of the inclusive $\mathrm{t}\overline{\mathrm{t}}$ cross section in pp collisions at $ \sqrt{s}=5.02 $ TeV using final states with at least one charged lepton. In Journal of High Energy Physics (Vol. 2018, Issue 3). Springer Science and Business Media LLC. https://doi.org/10.1007/jhep03(2018)115