CANTON-$μ$ Proposal: A Next-Generation Muon $g-2$ Measurement at Sub-0.1 ppm Precision
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arXiv
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| Autori principali: | , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866918417935630336 |
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| author | Zhang, Ce Xu, Yu Kim, On Li, Bingzhi Shen, Guodong Chen, Liangwen Ignatov, Fedor Li, Liang Li, Qiang Zhang, Xueheng Sun, Zhiyu |
| author_facet | Zhang, Ce Xu, Yu Kim, On Li, Bingzhi Shen, Guodong Chen, Liangwen Ignatov, Fedor Li, Liang Li, Qiang Zhang, Xueheng Sun, Zhiyu |
| contents | 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 work studies the 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 within the Standard-Model Extension at the $10^{-24}$ GeV level, improving existing limits by more than an order of magnitude. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_11486 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | CANTON-$μ$ Proposal: A Next-Generation Muon $g-2$ Measurement at Sub-0.1 ppm Precision Zhang, Ce Xu, Yu Kim, On Li, Bingzhi Shen, Guodong Chen, Liangwen Ignatov, Fedor Li, Liang Li, Qiang Zhang, Xueheng Sun, Zhiyu High Energy Physics - Experiment High Energy Physics - Phenomenology 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 work studies the 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 within the Standard-Model Extension at the $10^{-24}$ GeV level, improving existing limits by more than an order of magnitude. |
| title | CANTON-$μ$ Proposal: A Next-Generation Muon $g-2$ Measurement at Sub-0.1 ppm Precision |
| topic | High Energy Physics - Experiment High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2512.11486 |