Preprint / hep-ph KEK-TH-1301 UT-HET 025 IC-2009-006 arXiv:0902.2458

Higgs boson pair production at the Photon Linear Collider in the two Higgs doublet model

Abstract: We calculate the cross section of the lightest Higgs boson pair production at the Photon Linear Collider in the two Higgs doublet model. We focus on the scenario in which the lightest Higgs boson has the standard model like couplings to gauge bosons. We take into account the one-loop correction to the $hhh$ coupling as well as additional one-loop diagrams due to charged bosons to the $\gamma\gamma \to hh$ helicity amplitudes. We discuss the impact of these corrections on the $hhh$ coupling measurement at the Photon Linear Collider.

Note: Comments: 8 pages, 8 figures, talk given at LCWS08 and proceedings of the 8th general meeting of the ILC physics working group

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