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Low-Energy Theorems in Higgs Physics

Bernd A. Kniehl·M. Spira
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Abstract

We present low-energy theorems for the calculation of loop amplitudes with external scalar or pseudoscalar Higgs bosons which are light compared to the loop particles. Starting from existing lowest-order versions of these theorems, we show how their applicability may be extended to the two--loop level. To illustrate the usefulness of these theorems, we discuss a number of applications to Higgs production and decay at and beyond the one--loop order.

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Bernd A. Kniehl, M. Spira. 1995-05-03. Low-Energy Theorems in Higgs Physics. https://arxiv.org/abs/hep-ph/9505225

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