Atomic Parity Violation and Precision Electroweak Physics - An Updated Analysis

TL;DR

This paper presents an updated analysis of atomic parity violation in cesium, refining the weak charge measurement and discussing its implications for electroweak physics and new physics searches.

Contribution

It provides a more precise measurement of the weak charge in cesium and explores its impact on constraining electroweak parameters and new Z boson searches.

Findings

Refined weak charge value: $Q_W({ m Cs}) = -72.06 \, extpm \, 0.46$

Constraints on Peskin-Takeuchi parameters S and T

Guidance for future Z boson search experiments

Abstract

A new analysis of parity violation in atomic cesium has led to the improved value of the weak charge, $Q_W({\rm Cs}) = -72.06 \pm 0.46$. The implications of this result for constraining the Peskin-Takeuchi parameters S and T and for guiding searches for new Z bosons are discussed.