Česky
English
Committee for collaboration of Czech Republic

with Joint Institute for Nuclear Research in Dubna Login
Study of the underlying event in top quark pair production in pp collisions at 13 TeV

Author
Sirunyan A.M. Yerevan Physics Institute, Armenia
Finger Miroslav, prof. Ing. DrSc. Faculty of Mathematics and Physics, Charles University in Prague
Finger Michael, M.Sc. CSc. Faculty of Mathematics and Physics, Charles University in Prague, JINR Dubna
Korenkov V. JINR
et al.  different institutions

Year
2019

Scientific journal
EUROPEAN PHYSICAL JOURNAL C 79 (2) 123

Web


Abstract
Measurements of normalized differential cross sections as functions of the multiplicity and kinematic variables of charged-particle tracks from the underlying event in top quark and antiquark pair production are presented. The measurements are performed in proton-proton collisions at a center-of-mass energy of 13<, and are based on data collected by the CMS experiment at the LHC in 2016 corresponding to an integrated luminosity of 35.9fb(-1). Events containing one electron, one muon, and two jets from the hadronization and fragmentation of b quarks are used. These measurements characterize, for the first time, properties of the underlying event in top quark pair production and show no deviation from the universality hypothesis at energy scales typically above twice the top quark mass.

Cite article as:
A. Sirunyan, M. Finger, M. Finger, V. Korenkov, . et al., "Study of the underlying event in top quark pair production in pp collisions at 13 TeV ", EUROPEAN PHYSICAL JOURNAL C 79 (2) 123 (2019)