Measurements of the tt- production cross section in the dilepton decay channel in pp collisions at square root s = 7 TeV

Authors

• The CMS collaboration
• S. Chatrchyan
• V. Khachatryan
• Marc M. Baarmand, Florida Institute of Technology
• B. Dorney, Florida Institute of Technology
• Marcus Hohlmann, Florida Institute of Technology
• Himali Kalakhety, Florida Institute of Technology
• Francisco X. Yumiceva, Florida Institute of Technology

Document Type

Article

Publication Title

High Energy Physics

Abstract

Abstract: The top-antitop quark (t¯t) production cross section is measured in proton- proton collisions at √s = 8 TeV with the CMS experiment at the LHC, using a data sample corresponding to an integrated luminosity of 5.3 fb−1. The measurement is performed by analysing events with a pair of electrons or muons, or one electron and one muon, and at least two jets, one of which is identified as originating from hadronisation of a bottom quark. The measured cross section is 239±2 (stat.)±11 (syst.)±6 (lum.) pb, for an assumed top-quark mass of 172.5 GeV, in agreement with the prediction of the standard model.

DOI

10.1007/JHEP02(2014)024

Publication Date

2-5-2014

Recommended Citation

The CMS collaboration., Chatrchyan, S., Khachatryan, V. et al. Measurement of the tt- production cross section in the dilepton decay channel in pp collisions at square root s = 7 TeV. J. High Energ. Phys. 2014, 24 (2014). https://doi.org/10.1007/JHEP02(2014)024