2013/07/23 by Stefan Berge, Berge, Stefan, Susanne Westhoff +1
Computer Science · Physics and Astronomy · #Computer Graphics and Visualization Techniques #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Scientific Research and Discoveries #hep-ex #hep-ph
paper · pdf · doi:10.48550/arxiv.1307.6225
Contribution prepared for the Community Summer Study 2013. 7 pages, 2 figures
openalex publication_date 2013/07/23 · arxiv created 2013/07/31 · arxiv updated 2013/08/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We investigate the discovery potential of the top-quark charge asymmetry at the LHC in top-antitop production in association with a hard jet. In this process, the charge asymmetry can be accessed via two novel observables: the incline asymmetry, which probes the quark-antiquark channel, and the energy asymmetry, which gives access to the quark-gluon channel. At 8 TeV collision energy, the significance for both observables is statistically limited. With 14 TeV and an integrated luminosity of 50 inverse fb or more, an asymmetry of up to -12% can be observed with a statistical significance of more than 5 standard deviations. Prospects of measuring the charge asymmetry at the intended high-luminosity and high-energy LHC upgrades are discussed.