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  • Open Access

Search for neutral triple gauge couplings with ZZ production at future electron-positron colliders

Yu-Chen Guo*

Man-Qi Ruan†

Ji-Chong Yang‡ and Chun-Jing Pan§

  • Center for Theoretical and Experimental High Energy Physics, Department of Physics, Liaoning Normal University, Dalian 116029, China

  • *Contact author: ycguo@lnnu.edu.cn
  • †Contact author: ruanmq@ihep.ac.cn
  • ‡Contact author: yangjichong@lnnu.edu.cn
  • §Contact author: panchunjing2022@163.com
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Phys. Rev. D 112, 035033 – Published 21 August, 2025

DOI: https://doi.org/10.1103/z1sc-f8m4

Abstract

This study investigates neutral triple gauge couplings (nTGCs) through ZZ production at future electron-positron colliders. The impact of beam polarization on the cross section is analyzed. We compare the signals and backgrounds for five different ZZ decay channels and present our event selection strategies for future e+e− colliders. The expected coefficient constraints for all decay channels are provided, and final expected constraints are derived by combining results from the different decay patterns. Our analysis indicates that future electron-positron colliders will have significantly enhanced detection capabilities for nTGCs compared to the current LHC experiments, with expected improvements in constraints by 1 to 2 orders of magnitude.

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Phys. Rev. D 112, 035033– Published 21 August, 2025
  • Received 30 May 2025
  • Accepted 24 July 2025
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