New physics from Higgs self-coupling measurement

TL;DR

This paper investigates how radiative corrections to the Higgs self-coupling in the two Higgs doublet model could be detected in future collider experiments, linking it to electroweak baryogenesis.

Contribution

It demonstrates that one-loop corrections in the two Higgs doublet model are significant enough for future detection, connecting Higgs physics with baryogenesis.

Findings

Large one-loop corrections to Higgs self-coupling are detectable in future experiments.

Corrections are linked to electroweak baryogenesis scenarios.

Potential to probe baryon number generation through Higgs measurements.

Abstract

Radiative correction to the triple Higgs boson coupling is studied in the two Higgs doublet model in connection with the electroweak baryogenesis. It is shown that the one loop correction is large enough to be identified in future linear collider experiments, if the baryon number of the Universe is generated at the first order electroweak phase transition.