Muon (g-2) Technical Design Report

TL;DR

The Muon (g-2) Experiment at Fermilab aims to measure the muon anomalous magnetic moment with four times greater precision than previous experiments, potentially revealing new physics beyond the Standard Model.

Contribution

This report details the design and technical plans for the new Muon (g-2) experiment, including the use of the existing BNL muon storage ring at Fermilab.

Findings

Expected to clarify the discrepancy with Standard Model predictions.

Will provide definitive evidence for or against new physics.

Enhances precision in muon magnetic moment measurement.

Abstract

The Muon (g-2) Experiment, E989 at Fermilab, will measure the muon anomalous magnetic moment a factor-of-four more precisely than was done in E821 at the Brookhaven National Laboratory AGS. The E821 result appears to be greater than the Standard-Model prediction by more than three standard deviations. When combined with expected improvement in the Standard-Model hadronic contributions, E989 should be able to determine definitively whether or not the E821 result is evidence for physics beyond the Standard Model. After a review of the physics motivation and the basic technique, which will use the muon storage ring built at BNL and now relocated to Fermilab, the design of the new experiment is presented. This document was created in partial fulfillment of the requirements necessary to obtain DOE CD-2/3 approval.