Neutrino Effects on Atomic Measurements of the Weinberg Angle

TL;DR

This paper derives a comprehensive formula for neutrino-mediated quantum forces and explores their impact on atomic measurements of the Weinberg angle, suggesting atomic physics as a new probe for neutrino interactions.

Contribution

It provides a complete expression for neutrino-induced forces beyond the four-Fermi approximation and analyzes their influence on atomic parity violation measurements.

Findings

Neutrino effects are significant compared to current experimental sensitivity.

Neutrino interactions can notably alter the measured Weinberg angle in atomic systems.

The results open new avenues for detecting neutrino forces using atomic physics.

Abstract

We derive a complete expression for the neutrino-mediated quantum force beyond the four-Fermi approximation within the Standard Model. Using this new result, we study the effect of atomic parity violation caused by neutrinos. We find that the neutrino effect is sizable compared to the current experimental sensitivity and can also significantly affect the value of the Weinberg angle measured in atomic systems. This offers a promising method for detecting the neutrino force in the future and facilitates the application of precision atomic physics as a probe for neutrino physics and the electroweak sector of the Standard Model.