Final state interactions at the threshold of Higgs boson pair production

TL;DR

This paper investigates how final state interactions influence Higgs boson pair production near threshold in the Standard Model, revealing process-dependent corrections to production cross sections.

Contribution

It provides a detailed analysis of final state interaction effects on different Higgs pair production processes at threshold, highlighting their varying significance.

Findings

Significant corrections for lepton pair annihilation

Small corrections for ZZ fusion

Negligible effects for WW fusion

Abstract

We study the effect of final state interactions at the threshold of Higgs boson pair production in the Glashow-Weinberg-Salam model. We consider three major processes of the pair production in the model: lepton pair annihilation, ZZ fusion, and WW fusion. We find that the corrections caused by the effect for these processes are markedly different. According to our results, the effect can cause non-negligible corrections to the cross sections for lepton pair annihilation and small corrections for ZZ fusion, and this effect is negligible for WW fusion.