Measurement of the Inclusive tt Cross Section in pp Collisions at √s = 5.02 TeV Using Final States with at Least One Charged Lepton

Journal of High Energy Physics 2018
Viesturs Veckalns, CERN international group of authors

The top quark pair production cross section (σtt ¯) 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 σtt ¯ = 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.

Atslēgas vārdi
Hadron-Hadron scattering (experiments), Top physics
DOI
10.1007/JHEP03(2018)115
Hipersaite
https://link.springer.com/article/10.1007%2FJHEP03%282018%29115

Veckalns, V., international group of authors, C. Measurement of the Inclusive tt Cross Section in pp Collisions at √s = 5.02 TeV Using Final States with at Least One Charged Lepton. Journal of High Energy Physics, 2018, Vol.2018, Iss.3, 1.-11.lpp. ISSN 1126-6708. e-ISSN 1029-8479. Pieejams: doi:10.1007/JHEP03(2018)115

Publikācijas valoda
English (en)