Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-12-10
Nucl.Phys. B523 (1998) 17-39
Physics
High Energy Physics
High Energy Physics - Phenomenology
29 pages (Latex), 3 figures (Postscript)
Scientific paper
10.1016/S0550-3213(98)00147-3
The dominant electroweak corrections to the production cross sections and partial decay widths of a light Standard-Model Higgs boson, with mass M_H << 2m_t, are due to top-quark loops. By means of a low-energy theorem, we study at the two-loop level the leading shifts in the Higgs-boson couplings to pairs of light fermions and gauge bosons induced by a sequential isodoublet of high-mass fermions. For tree-level and loop-induced Higgs-boson couplings, these corrections are of relative orders O(G_mu^2 m_F^4) and O(G_mu m_F^2), respectively, where m_F represents a generic heavy-fermion mass, with m_F >> M_W, M_H. Except for the Hbb-bar coupling, all results carry over to the case of the top-quark-induced corrections. We discuss possible phenomenological consequences of our results.
Djouadi Abdelhak
Gambino Paolo
Kniehl Bernd A.
No associations
LandOfFree
Two-Loop Electroweak Heavy-Fermion Corrections to Higgs-Boson Production and Decay does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Two-Loop Electroweak Heavy-Fermion Corrections to Higgs-Boson Production and Decay, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-Loop Electroweak Heavy-Fermion Corrections to Higgs-Boson Production and Decay will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-437427