Electroweak corrections to $g+g\to H_{l,h}$ and $H_{l,h}\to\gamma+\gamma$ in the Higgs-singlet extension of the Standard model

Benjamin Summ; Christian Sturm; Sandro Uccirati

Electroweak corrections to g+gto H_(l,h) and H_(l,h)toγ+γ in the Higgs-singlet extension of the Standard model

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arxiv 2212.11835 v1 pith:NBV6QJO2 submitted 2022-12-22 hep-ph

Electroweak corrections to g+gto H_(l,h) and H_(l,h)toγ+γ in the Higgs-singlet extension of the Standard model

Christian Sturm , Benjamin Summ , Sandro Uccirati This is my paper

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keywords correctionselectroweakhiggs-bosonhsesmmodelstandardextensiongamma

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We calculate the next-to-leading order electroweak corrections for Higgs-boson production in gluon fusion and the Higgs-boson decay into two photons or gluons in the real Higgs-singlet extension of the Standard model (HSESM). For the light Higgs-boson of the HSESM the electroweak corrections for these processes are of the same order of magnitude as in the Standard model. For the heavy Higgs-boson of the HSESM the electroweak corrections can become large depending on the considered scenario.

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