Complete one-loop electroweak corrections to $ZZZ$ production at the ILC

TL;DR

This paper calculates the complete one-loop electroweak corrections to triple Z boson production at the ILC, revealing significant suppression of the cross section and analyzing dependence on energy and Higgs mass.

Contribution

It provides the first comprehensive calculation of electroweak one-loop corrections to $ZZZ$ production at the ILC within the Standard Model, including detailed distributions.

Findings

EW corrections suppress the cross section by up to ~16%.

Relative correction varies with energy and Higgs mass.

Distributions of transverse momentum and invariant mass are analyzed.

Abstract

We study the complete ${\cal O}(\alpha_{ew})$ electroweak (EW) corrections to the production of three $Z^0$-bosons in the the framework of the standard model(SM) at the ILC. The leading order and the EW next-to-leading order corrected cross sections are presented, and their dependence on the colliding energy $\sqrt{s}$ and Higgs-boson mass $m_{H}$ is analyzed. We investigate also the LO and one-loop EW corrected distributions of the transverse momentum of final $Z^0$ boson, and the invariant mass of $Z^0Z^0$-pair. Our numerical results show that the EW one-loop correction generally suppresses the tree-level cross section, and the relative correction with $m_{H}=120 GeV(150 GeV)$ varies between $-15.8%(-13.9%)$ and $-7.5%(-6.2%)$ when $\sqrt{s}$ goes up from $350 GeV$ to $1 TeV$.