Two-Loop $\mathcal{O}({\alpha }_s^2)$ Correction to the $H\to b\bar{b}$ Decay Rate Induced by the Top Quark

Abstract

We present the two-loop QED and QCD corrections to the $f\bar{f}H$ Yukawa coupling that are induced by the exchange of a virtual photon or gluon, respectively, with a heavy-fermion loop inserted. As an application, we study the corresponding $Ø({\alpha }_s^2{M}_H^2/m_t^2)$ correction to the $H\to b\bar{b}$ decay rate.

6 pages, Latex, figures (2) are not included, MPI/PhT/94-69

References in corpus (5)

• Higgs Bosons: Intermediate Mass Range at e+e- Colliders
• Higgs Bosons at the Fermilab Tevatron
• Corrections of Order $\mathcal{O}(G_F{\alpha }_s{m}_t^2)$ to the Higgs Decay Rate $\Gamma (H\to b\bar{b})$
• Production and decay of the Standard Model Higgs Bososn at LEP200
• Two-Loop $\mathcal{O}({\alpha }_s{G}_F{m}_t^2)$ Corrections to the Fermionic Decay Rates of the Standard-Model Higgs Boson

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