Potential for a new muon g-2 experiment

TL;DR

This paper proposes a new muon g-2 measurement experiment with high sensitivity, utilizing a novel storage ring setup that minimizes momentum dependence and allows precise magnetic field measurements with flexible muon energies.

Contribution

It introduces a new experimental design for muon g-2 measurement that simplifies setup and enhances precision compared to existing methods.

Findings

Sensitivity of about 0.03 ppm achievable

Spin rotation frequency becomes momentum-independent

Method to avoid betatron resonance analyzed

Abstract

A new experiment to measure the muon g-2 factor is proposed. We suppose the sensitivity of this experiment to be about 0.03 ppm. The developed experiment can be performed on an ordinary storage ring with a noncontinuous field created by usual magnets. When the total length of straight sections of the ring is appropriate, the spin rotation frequency becomes almost independent of the particle momentum. In this case, a high-precision measurement of an average magnetic field can be carried out with polarized proton beams. A muon beam energy can be arbitrary. Possibilities to avoid a betatron resonance are analyzed and corrections to the g-2 frequency are considered.