Pair Production of Two-Higgs-Doublet_Model Light Higgs Bosons in $\gamma \gamma$ Collisions

TL;DR

This paper investigates the production of light Higgs boson pairs in photon-photon collisions within the Two Higgs Doublet Model, showing it can significantly exceed Standard Model predictions and help determine scalar potential parameters.

Contribution

It provides the first detailed analysis of light Higgs pair production in photon collisions within the THDM, highlighting potential for parameter measurement.

Findings

Cross section can be much larger than in the Standard Model.

Photon Collider could measure scalar potential parameters.

Process occurs at one loop in both models.

Abstract

We study the production of a pair of light, neutral, CP-even Higgs bosons in photon--photon collisions within the general Two Higgs Doublet Model (THDM). This is a process for which the lowest order contribution in both, the Standard Model and the THDM, appears at one loop. We find that the cross section for this process can be much larger in the THDM than in the Standard Model and the number of events expected at the Photon Collider will allow a determination of some of the parameters in the scalar potential.