Effective Theories and Electroweak Precision Constraints

TL;DR

This paper reviews how effective field theories are used to derive electroweak precision constraints on new physics at the TeV scale, detailing operator identification, calculations, and data comparison.

Contribution

It provides a comprehensive, pedagogical overview of applying effective theories to electroweak precision tests, including operator selection, calculation methods, and literature review.

Findings

Constraints on effective operators derived from electroweak data

Comparison of theoretical corrections with experimental measurements

Summary of different approaches in the literature

Abstract

This is a pedagogical and self-contained review on obtaining electroweak precision constraints on TeV scale new physics using the effective theory method. We identify a set of relevant effective operators in the standard model and calculate from them corrections to all major electroweak precision observables. The corrections are compared with data to put constraints on the effective operators. Various approaches and applications in the literature are reviewed.