KIT | KIT-Bibliothek | Impressum | Datenschutz
Open Access Logo
§
Verlagsausgabe
DOI: 10.5445/IR/1000084539
Veröffentlicht am 30.07.2018

Measurement of differential cross sections for the production of top quark pairs and of additional jets in lepton+jets events from pp collisions at √s=13TeV

CMS Collaboration; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Hrubec, J.; Jeitler, M.; Krammer, N.; Krätschmer, I.; Liko, D.; ... mehr

Abstract:
Differential and double-differential cross sections for the production of top quark pairs in proton-proton collisions at s√=13TeV are measured as a function of kinematic variables of the top quarks and the top quark-antiquark (tt¯) system. In addition, kinematic variables and multiplicities of jets associated with the tt¯ production are measured. This analysis is based on data collected by the CMS experiment at the LHC in 2016 corresponding to an integrated luminosity of 35.8fb−1. The measurements are performed in the lepton+jets decay channels with a single muon or electron and jets in the final state. The differential cross sections are presented at the particle level, within a phase space close to the experimental acceptance, and at the parton level in the full phase space. The results are compared to several standard model predictions that use different methods and approximations. The kinematic variables of the top quarks and the tt¯ system are reasonably described in general, though none predict all the measured distributions. In particular, the transverse momentum distribution of the top quarks is more steeply falling than pre ... mehr


Zugehörige Institution(en) am KIT Institut für Experimentelle Teilchenphysik (ETP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 2470-0010, 2470-0029
URN: urn:nbn:de:swb:90-845391
KITopen ID: 1000084539
Erschienen in Physical review / D
Band 97
Heft 11
Seiten Article: 112003
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Vorab online veröffentlicht am 15.06.2018
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft KITopen Landing Page