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arXiv · 1104.1631

SUSY QCD Corrections to Higgs-b Production : Is the Δ_b Approximation Accurate?

S. Dawson·C. B. Jackson·P. Jaiswal
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Abstract

The associated production of a Higgs boson with a b quark is a discovery channel for the lightest MSSM neutral Higgs boson. We consider the SUSY QCD contributions from squarks and gluinos and discuss the decoupling properties of these effects. A detailed comparison of our exact order(alpha_s) results with those of a widely used effective Lagrangian approach, the Δ_b approximation, is presented. The Δ_b approximation is shown to accurately reproduce the exact one-loop SQCD result to within a few percent over a wide range of parameter space.

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S. Dawson, C. B. Jackson, P. Jaiswal. 2011-05-19. SUSY QCD Corrections to Higgs-b Production : Is the Δ_b Approximation Accurate?. https://doi.org/10.1103/physrevd.83.115007

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