arXiv subjects

S. R. Ignjatovic

Publications and source records attributed to S. R. Ignjatovic.

2 recordsLinked to original sources

arXiv1997

An evaluation of the analytic continuation by duality technique

In Nucl. Phys. B391 (1993) 127, the value of the oblique correction parameter S for walking technicolor theories was estimated using a technique called Analytic Continuation by Duality (ACD). We apply the ACD technique to the perturbative vacuum polarization function and find that it fails to reproduce the well known result S=1/6π. This brings into question the reliability of the ACD technique and the ACD estimate of S.

hep-ph↗

arXiv1997

ACD estimation of the S parameter revisited

The analytic continuation by duality (ACD) technique has been used to estimate the electroweak S parameter in technicolor models. In this letter, we investigate the reliability of this method by applying it to some toy models with known spectra. We find that in most instances the technique cannot be trusted to give a reliable result.

hep-ph↗