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Discovering the physics of (g?2)μ at future muon colliders

机译：在未来的μ子撞机中发现（g？2）μ的物理学

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The longstanding muon g ? 2 anomaly may indicate the existence of new particles that couple to muons, which could either be light ( ? GeV ) and weakly coupled, or heavy ( ? 100 ? ? GeV ) with large couplings. If light new states are responsible, upcoming intensity frontier experiments will discover further evidence of new physics. However, if heavy particles are responsible, many candidates are beyond the reach of existing colliders. We show that, if the ( g ? 2 ) μ anomaly is confirmed and no explanation is found at low-energy experiments, a high-energy muon collider program is guaranteed to make fundamental discoveries about our Universe. New physics scenarios that account for the anomaly can be classified as either “singlet” or “electroweak” (EW) models, involving only EW singlets or new EW-charged states respectively. We argue that a TeV-scale future muon collider will discover all possible singlet model solutions to the anomaly. If this does not yield a discovery, the next step would be a O ( 10 ? ? TeV ) muon collider. Such a machine would either discover new particles associated with high-scale EW model solutions to the anomaly, or empirically prove that nature is fine-tuned, both of which would have profound consequences for fundamental physics.
机译：长期的muon g？ 2异常可以表明存在于耦合到MuOn的新颗粒，其可以是光（αGEV）和具有大型联轴器的弱（？100Ω·ΔGev）。如果点亮新闻是负责任的，即将到来的强度前沿实验将发现新物理学的进一步证据。然而，如果重粒子是负责任的，许多候选者超出了现有煤机的范围。我们表明，如果确认（g？2）μ异常，并且在低能量实验中没有发现解释，则保证高能量的μ子撞机程序，以便对我们的宇宙产生根本的发现。用于异常的新物理场景可以分为“单线”或“ElectroWeak”（EW）模型，仅涉及EW Singlet或新的EW指控状态。我们认为Tev-Scale Future Muon Collifer将发现所有可能的单线型模型解决方案。如果这没有发现发现，下一步将是一个（10？tev）muon撞机。这样的机器要么发现与大规模EW模型解决方案相关的新颗粒，或者经验证明性质是微调的，这两者都会对基本物理学产生深远的影响。

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