# Abstract:

In
the framework of the effective field theory method, we use the
experimental data and the perturbative unitarity bounds to determine
the values and uncertainty of all the 11 chiral coefficients ($\al_i,
i=0, ..., 10$) of the standard electroweak chiral Lagrangian. Up to
linear terms in $\al_i$, we provide the one-loop renormalization group
equations of all the chiral coefficients, which are calculated in the
Feynman-'t Hooft gauge using the modified minimal subtraction scheme.
With the improved renormalization group equations to sum over the
logarithmic corrections, we analyze the current experimental
uncertainty of oblique correction parameters, $S(\Lambda) and
$T(\Lambda)$. We find that, due to the large uncertainty in the triple
gauge-boson coupling measurements, the parameter space of positive
$S(\Lambda)$ for $\Lambda > 1$ TeV is still allowed by the current
experimental data. $T(\Lambda)$ tends to increase with $\Lambda$ even
in the presence of the operators that contribute to the triple and
quartic gauge-boson couplings.