Compact Muon Solenoid
LHC, CERN
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| CMS-PAS-TOP-17-015 | ||
| Study of the underlying event in top quark pair production at 13 TeV | ||
| CMS Collaboration | ||
| March 2018 | ||
| Abstract: Normalized differential cross sections as functions of the multiplicity and kinematic variables of charged-particle tracks from the underlying event are measured in top quark and antiquark pair events produced in proton-proton collisions at a center-of-mass energy of 13 TeV. The analysis is based on data collected by the CMS experiment at the LHC in 2016 and corresponding to an integrated luminosity of 35.9 fb−1. The selected events contain one electron, one muon, and two jets from the hadronization and fragmentation of b quarks. These measurements characterize, for the first time, the properties of the underlying event at a factorization scale which is typically above twice the top quark mass. The sensitivity of the measured cross sections to different parameters employed in state-of-the-art Monte Carlo simulation programs is demonstrated by comparing the results with different simulations. | ||
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Links:
CDS record (PDF) ;
inSPIRE record ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, EPJC 79 (2019) 123. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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