English

Scale dependence of top-quark cross section at $e^+e^-$ colliders near production threshold at NNNLO

High Energy Physics - Phenomenology 2026-02-16 v1

Abstract

The top-quark threshold cross section at e+ee^+e^- colliders near production threshold is investigated. We study the scale dependence of the cross section for σ(e+ettX\sigma(e^+e^- \to ttX) near s2mt\sqrt{s} \simeq 2m_t and discuss the theoretical accuracy of the NNNLO prediction. We report that a threshold scan at an e+ee^+e^- collider would allow a determination of the top-quark mass with an accuracy of order 30 MeV.

Keywords

Cite

@article{arxiv.2602.12629,
  title  = {Scale dependence of top-quark cross section at $e^+e^-$ colliders near production threshold at NNNLO},
  author = {Yuichiro Kiyo},
  journal= {arXiv preprint arXiv:2602.12629},
  year   = {2026}
}

Comments

Talk at the 18th International Workshop on Top Quark Physics (Top2025), 21-26 September 2025