Renormalization of the EWCL and its Application to LEP2

Details Renormalization of the EWCL and its Application to LEP2 Renormalization of the EWCL and its Application to LEP2

2005-09-22

arxiv.org/abs/hep-ph/0509227v1

Int.J.Mod.Phys.A21:889-892,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 eps figure, uses ws-ijmpa.cls. Paralell talk given at "International Conference on QCD and hadronic Physics", Beiji

Scientific paper

10.1142/S0217751X06032241

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 $\Lambda=1 TeV$, and find that the uncertainty in the TGC measurements can shift $S(\Lambda)$ at least $3.3 \sigma$.

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