Speaker
Description
We propose CANTON-$\mu$ (Coherent Anomalous magNetic momenT ObservatioN with muon), a next-generation measurement of the muon anomalous magnetic moment at the High Intensity Heavy-Ion Accelerator Facility (HIAF) in China. As the first muon $g-2$ experiment designed to surpass Fermilab precision, CANTON-$\mu$ will exploit intense pulsed GeV-scale muon beams and novel experimental techniques, particularly for negative muons. Phase 1 aims for a precision of $0.13\,\mathrm{ppm}$, matching the current Fermilab result, while a future HIAF upgrade could reach $0.05\,\mathrm{ppm}$. Such precision will provide stringent tests of the Standard Model and sensitivity to new physics beyond current collider scales. In addition, CANTON-$\mu$ will enable highly sensitive tests of CPT symmetry within the Standard-Model Extension, probing effects at the $10^{-24}\,\mathrm{GeV}$ level and improving existing limits by more than an order of magnitude.
