Effective Higgs-to-Light-Quark Coupling Induced by Heavy Quark Loops

Details Effective Higgs-to-Light-Quark Coupling Induced by Heavy Quark Loops Effective Higgs-to-Light-Quark Coupling Induced by Heavy Quark Loops

1996-06-17

arxiv.org/abs/hep-ph/9606352v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 7 figures, talk given at the 18th annual MRST meeting, Toronto, May 9-10, 1996

Scientific paper

We study the coupling arising via perturbative QCD of zero 4-momentum Higgs bosons to light quarks inside the nucleon. Qualitative comparison with the results obtained from one-loop-order low energy theorems for the Higgs-nucleon interaction suggests the existence of a dynamical light-quark mass which falls off with momentum. Quantitative comparison leads to an estimate of $\alpha_s$ at very low $q^2$ quite near unity.

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