Measurement of the ttbar production cross section using events with one lepton and at least one jet in pp collisions at sqrt(s)=13 TeV - Archive ouverte HAL Access content directly
Journal Articles Journal of High Energy Physics Year : 2017

Measurement of the ttbar production cross section using events with one lepton and at least one jet in pp collisions at sqrt(s)=13 TeV

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A.M. Sirunyan
  • Function : Author
S. Baffioni
P. Busson
R. Granier De Cassagnac
P. Paganini
N. Chanon
C. Collard
D. Contardo
J. Fan
  • Function : Author
M. Gouzevitch
Fabienne Lagarde
M. Lethuillier
A. Popov
  • Function : Author
V. Sordini
S. Viret

Abstract

A measurement of the ttbar production cross section at sqrt(s)=13 TeV is presented using proton-proton collisions, corresponding to an integrated luminosity of 2.3 inverse femtobarns, collected with the CMS detector at the LHC. Final states with one isolated charged lepton (electron or muon) and at least one jet are selected and categorized according to the accompanying jet multiplicity. From a likelihood fit to the invariant mass distribution of the isolated lepton and a jet identified as coming from the hadronization of a bottom quark, the cross section is measured to be sigma(ttbar)= 835 +/- 3 (stat) +/- 23 (syst) +/- 23 (lum) pb, in agreement with the standard model prediction. Using the expected dependence of the cross section on the pole mass of the top quark (m[t]), the value of m[t] is found to be 172.7+2.4-2.7 GeV.
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Dates and versions

in2p3-01449500 , version 1 (14-12-2018)

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Cite

A.M. Sirunyan, M. Besançon, F. Couderc, M. Dejardin, D. Denegri, et al.. Measurement of the ttbar production cross section using events with one lepton and at least one jet in pp collisions at sqrt(s)=13 TeV. Journal of High Energy Physics, 2017, 09(2017) (9), pp.051. ⟨10.1007/JHEP09(2017)051⟩. ⟨in2p3-01449500⟩
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