Measurements of differential \(t\bar{t}\) production cross sections at CMS

An overview of recent measurements of differential top quark pair production cross sections performed by the CMS experiment at the LHC is presented. Measurements at different proton-proton center-of-mass energies are available using the dilepton, lepton+jets, and all-jets decay channels of the top q...

Full description

Saved in:
Bibliographic Details
Published inarXiv.org
Main Author Hindrichs, Otto
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 12.01.2018
Subjects
Cross-sections
Dependence
Large Hadron Collider
Leptons
Pair production
Quarks
Solenoids
Standard model (particle physics)
Transverse momentum
Online AccessGet full text

Cover

More Information
Summary:An overview of recent measurements of differential top quark pair production cross sections performed by the CMS experiment at the LHC is presented. Measurements at different proton-proton center-of-mass energies are available using the dilepton, lepton+jets, and all-jets decay channels of the top quark. In addition to the measurements of parton-level top quarks, many measurements at particle level in an experimental accessible phase space are now available. For these results the dependence on theoretical extrapolations is reduced. A common observation of all measurements is a softer transverse momentum of the top quark than predicted by state of the art standard model calculations. However, new calculations with NNLO QCD and NLO electro-weak precision show an improved agreement.
ISSN:2331-8422