QCD Corrections to $b \to s γ$ Decay in 2-Higgs Doublet Model

Details QCD Corrections to $b \to s γ$ Decay in 2-Higgs Doublet Model QCD Corrections to $b \to s γ$ Decay in 2-Higgs Doublet Model

1994-08-16

arxiv.org/abs/hep-ph/9408297v3

Nucl.Phys. B441 (1995) 33-48

Physics

High Energy Physics

High Energy Physics - Phenomenology

23 pages, 8 figures(not included), Minor Changes

Scientific paper

10.1016/0550-3213(95)00054-V

We give a more complete calculation of $b \to s\gamma $ decay in 2-Higgs doublet model, including leading log QCD corrections from $m_{top}$ to $M_W$ in addition to corrections from $M_{W}$ to $m_b$. The inclusive decay rate in the first model is found to be suppressed 23\% comparing with the calculations without the QCD running from $m_{top}$ to $M_W$. And the enhancement up to 5\% is found in calculations of the second model. More strict restrictions to parameters of 2-Higgs doublet model II are found.

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