Abstract
We calculate the effects of the pair production of top quarks and their subsequent weak decays on event topologies and inclusive distributions in e +e − annihilation experiments. The resulting jet distributions are compared with those originating from the lighter quarks (u, d, s, c, b) with higher-order QCD corrections included. The calculation is based on the Kobayashi-Maskawa model for the weak decay of the heavy quarks including non-leptonic and semileptonic decay modes. The final evolution of quarks into hadrons has been taken into account using a quark fragmentation model. We find that the jet measures such as sphericity, thrust and acoplanarity are very sensitive to the onset of a new quark threshold in e +e − experiments. A comparison is made with available data from PETRA in the energy range 13 ⩽ E cm ⩽ 31.6 GeV in order to test the model below the t t production threshold.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
