Exploring Resonant di-Higgs production in the Higgs Singlet Model
Chien-Yi Chen, S. Dawson, and I. M. Lewis
TL;DR
This paper investigates how a heavy Higgs boson in a Higgs singlet model can significantly enhance di-Higgs production at hadron colliders, providing insights into the scalar potential and electroweak stability.
Contribution
It quantifies the maximum possible resonant di-Higgs production enhancement in the Higgs singlet model consistent with electroweak minimum stability.
Findings
Resonant di-Higgs production can be enhanced by up to a factor of 18.
Maximum enhancement occurs for heavy Higgs masses around 270 GeV.
Enhancement decreases to a factor of 13 for a 420 GeV heavy Higgs.
Abstract
We study the enhancement of the di-Higgs production cross section resulting from the resonant decay of a heavy Higgs boson at hadron colliders in a model with a Higgs singlet. This enhancement of the double Higgs production rate is crucial in understanding the structure of the scalar potential and we determine the maximum allowed enhancement such that the electroweak minimum is a global minimum. The di-Higgs production enhancement can be as large as a factor of ~ 18 (13) for the mass of the heavy Higgs around 270 (420) GeV relative to the Standard Model rate at 14 TeV for parameters corresponding to a global electroweak minimum.
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