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arXiv · hep-ph/9704436

Higgs Decay to Top Quarks at O(α_s^2)

R. Harlander·M. Steinhauser
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Abstract

Three-loop corrections to the scalar and pseudo-scalar current correlator are calculated. By applying the large momentum expansion mass terms up to order (m^2/q^2)^4 are evaluated analytically. As an application O(α_s^2) corrections to the decay of a scalar and pseudo-scalar Higgs boson into top quarks are considered. It is shown that for a Higgs mass not far above the $t\bar{t}$ threshold these higher order mass corrections are necessary to get reliable results.

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R. Harlander, M. Steinhauser. 1997-04-29. Higgs Decay to Top Quarks at O(α_s^2). https://doi.org/10.1103/physrevd.56.3980

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