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arXiv · hep-ph/0509227

Renormalization of the EWCL and its Application to LEP2

Qi-Shu Yan
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Abstract

We perform a systematic one-loop renormalization on the electroweak chiral Lagrangian (EWCL) up to $O(p^4)$ operators and construct the renormalization group equations (RGE) for the anomalous couplings. We examine the impact of the triple gauge coupling (TGC) measurement from LEP2 to the uncertainty of the $S-T$ parameter at the $Λ=1 TeV$, and find that the uncertainty in the TGC measurements can shift $S(Λ)$ at least $3.3 σ$.

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Qi-Shu Yan. 2005-09-22. Renormalization of the EWCL and its Application to LEP2. https://doi.org/10.1142/s0217751x06032241

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