Estimation of oblique electroweak corrections
Abstract
We review the general analysis of the contributions of electroweak vacuum-polarization diagrams to precision experiments. We first review the representation of these contributions by three parameters S, T, and U and discuss the assumptions involved in this reduction. We then discuss the contributions to these parameters from various models of new physics. We show that S can be computed by a dispersion relation, and we use this technique to estimate S in technicolor models of the Higgs sector. We discuss the reliability and the gauge invariance of this estimate. Finally, we present the limits on S and T imposed by current experimental results.
- Publication:
-
Physical Review D
- Pub Date:
- July 1992
- DOI:
- 10.1103/PhysRevD.46.381
- Bibcode:
- 1992PhRvD..46..381P
- Keywords:
-
- 12.15.Cc;
- 12.15.Ji;
- 12.50.Lr;
- Applications of electroweak models to specific processes