Towards an Improved Test of the Standard Model's Most Precise Prediction

TL;DR

This paper discusses a new experimental approach to significantly improve the precision of measuring the electron and positron magnetic moments, key tests of the Standard Model, using positrons from a novel source.

Contribution

It introduces a new experimental method employing a student source of positrons to enhance measurement accuracy by an order of magnitude.

Findings

Progress summarized toward a new, more precise measurement

Positrons from a student source are now sufficient for the experiment

Potential to significantly improve Standard Model tests

Abstract

The electron and positron magnetic moments are the most precise prediction of the standard model of particle physics. The most accurate measurement of a property of an elementary particle has been made to test this result. A new experimental method is now being employed in an attempt to improve the measurement accuracy by an order of magnitude. Positrons from a "student source" now suffice for the experiment. Progress toward a new measurement is summarized.