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

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Abstract.

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 \(e^{-}p \rightarrow e^{-}\gamma^{\ast}\gamma^{\ast}p \rightarrow e^{-}t\bar{t}p\) collisions, which will provide information on limits of anomalous \( \hat{a}_{V}\) and \( \hat{a}_{A}\) couplings at 95% CL, as well as create the possibility of probing new physics. Energy of the e- beams is taken to be \( E_{e}=250\) GeV and 500 GeV, and the energy of the p beams is considered to be \( E_{p}=50\) TeV. With these energies the FCC-he can measure the dipole moments of the top quark \( \hat{a}_{V}\) and \( \hat{a}_{A}\) with limits of the order \(\mathcal{O} (10^{-2} -10^{-1})\).

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Authors and Affiliations

  1. Deparment of Physics, Sivas Cumhuriyet University, 58140, Sivas, Turkey

    A. A. Billur

  2. Deparment of Optical Engineering, Sivas Cumhuriyet University, 58140, Sivas, Turkey

    M. Köksal

  3. Facultad de Física, Universidad Autónoma de Zacatecas Apartado Postal C-580, 98060, Zacatecas, Mexico

    A. Gutiérrez-Rodrıguez

  4. Unidad Académica de Ciencias Químicas, Universidad Autónoma de Zacatecas Apartado Postal C-585, 98060, Zacatecas, Mexico

    M. A. Hernández-Ruız

Authors
  1. A. A. Billur
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  2. M. Köksal
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  3. A. Gutiérrez-Rodrıguez
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  4. M. A. Hernández-Ruız
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Correspondence to M. Köksal.

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Billur, A.A., Köksal, M., Gutiérrez-Rodrıguez, A. et al. Projections for model-independent limit estimates on top-quark anomalous electromagnetic couplings at the FCC-he. Eur. Phys. J. Plus 134, 547 (2019). https://doi.org/10.1140/epjp/i2019-12911-8

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