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Study of the underlying event in top quark pair production in pp collisions at 13 TeV

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 TeV, and are based on data collected by the CMS experiment at the LHC in 2016 corresponding to an integrated luminosity of 35.9 fb-1. Events containing one electron, one muon, and two jets from the hadronization and fragmentation of bb 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.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Eur. Phys. J. C 79, 123 (2019)

Editorial: Springer New York LLC

 Fecha de publicación: 01/02/2019

Nº de páginas: 49

Tipo de publicación: Artículo de Revista

 DOI: 10.1140/epjc/s10052-019-6620-z

ISSN: 1434-6044,1434-6052

Url de la publicación: https://doi.org/10.1140/epjc/s10052-019-6620-z