NuFact 2026 - The 27th International Workshop on Neutrinos from Accelerators

CANTON-μ Proposal: A Next-Generation Muon g−2 Measurement at Sub-0.1 ppm Precision

Not scheduled

20m

Tsung-Dao Lee Institute

Oral contribution WG4: Muon Physics

Speaker

CE ZHANG (University of Liverpool)

Description

We propose a next-generation precision measurement of the muon anomalous magnetic moment (muon g−2), at the High Intensity Heavy-Ion Accelerator Facility (HIAF) in China. The project, named CANTON-μ (Coherent Anomalous magNetic momenT ObservatioN with muon), represents the first muon g−2 experiment aimed at surpassing Fermilab precision. It introduces novel approaches based on HIAF's intense pulsed GeV-scale muon beams, particularly for negative-muon polarity. This talk will present expected muon beam intensity at HIAF, establishing the statistical reach and level of systematic control required to achieve a precision of 0.13 ppm in Phase 1, matching the current Fermilab precision, and 0.05 ppm in Phase 2 with the HIAF upgrade. This precision enables stringent tests of the Standard Model with sensitivity to new physics beyond current collider scales, and offers a uniquely sensitive test of CPT symmetry in muon sector, improving existing limits by more than an order of magnitude.