Measurement of the t production cross section in the dilepton channel in proton-proton collisions at = 8 TeV with the CMS experiment

5th International Workshop on Top Quark Physics

Kieseler, Jan^1

Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany^1

关键词: Data sample;    Final state;    Integrated luminosity;    Pair production;    Production cross section;    Proton proton collisions;    Quark jets;    Top quarks;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/452/1/012029/pdf
DOI  :  10.1088/1742-6596/452/1/012029

来源: IOP

【 摘 要 】

The cross section for top quark pair production is measured in proton-proton collisions at = 8 TeV in a data sample corresponding to 2.4 fb-1 of integrated luminosity collected by the CMS experiment in 2012. The measurement is performed with events with two leptons (electrons or muons), as well as with identified b-quark jets in the final state. The combined measured cross section is σt = 227 3 (stat.) 11 (syst.) 10 (lumi.) pb, in agreement with theoretical predictions.