Projections for model-independent limit estimates on top-quark anomalous electromagnetic couplings at the FCC-he

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Billur A. A. , Köksal M. , Gutierrez-Rodriguez A., Hernandez-Ruiz M. A.

EUROPEAN PHYSICAL JOURNAL PLUS, vol.134, 2019 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 134
  • Publication Date: 2019
  • Doi Number: 10.1140/epjp/i2019-12911-8


The measurement of the top-quark anomalous electromagnetic couplings is one of the most important goals of the top-quark physics program in present and future collider experiments and would provide direct information on the non-standard interactions of the top quark. We study a top-quark pair production scenario at the Future Circular Collider Hadron-Electron (FCC-he) through e-p -> e-gamma*gamma*p -> e-tt over bar p collisions, which will provide information on limits of anomalous aV couplings at 95% CL, as well as create the possibility of probing new physics. Energy of the e(-) beams is taken to be Ee=250 GeV and 500 GeV, and the energy of the p beams is considered to be Ep=50 TeV. With these energies the FCC-he can measure the dipole moments of the top quark aV with limits of the order O(10-2-10-1).