Status of the Fermilab (g-2) experiment

TL;DR

The Fermilab (g-2) experiment aims to precisely measure the muon's magnetic moment to resolve existing discrepancies with the Standard Model, potentially confirming new physics beyond current theories.

Contribution

This paper reports on the status and expected impact of the upcoming Fermilab (g-2) experiment, which will significantly improve measurement precision.

Findings

Enhanced measurement precision (140 ppb) compared to previous experiments

Potential to confirm or refute the muon (g-2) anomaly

Experiment scheduled to start in early 2017

Abstract

The upcoming muon (g-2) experiment at Fermilab will measure the anomalous magnetic moment of the muon to a relative precision of 140 ppb, 4 times better than the previous experiment at BNL. The new experiment is motivated by the persistent 3-4 standard deviations difference between the experimental value and the Standard Model prediction, and it will have the statistical sensitivity necessary to either refute the claim or confirm it with a confidence level exceeding a discovery threshold. The experiment is under construction and scheduled to start running in early 2017.