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arXiv 1911.04456hep-phgr-qchep-th
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来自虚黑洞的反常现象

Anomalous anomalies from virtual black holes

Joseph Bramante, Elizabeth Gould

摘要:

我们调查重力紫外/红外混合模型,预测故障的低能量有效场论,从回路水平,非本地的重力修正粒子过程。我们确定如何在这些理论中的红外截止的选择改变轻子磁矩的预测。使用Brookhaven E821 μ子磁矩数据,我们排除了UV/IR混合模型与IR截止设置的球形体积包围实验。另一方面,由包含μ子轨迹的简单连接的空间体积定义的IR截止意味着对可能已经观察到的μ子磁矩的校正。

英文摘要:

We investigate gravitational UV/IR mixing models that predict a breakdown of low energy effective field theory, from loop-level, non-local gravitational corrections to particle processes. We determine how the choice of IR cutoff in these theories alters predictions for lepton magnetic moments. Using Brookhaven E821 muon magnetic moment data, we exclude models of UV/IR mixing with an IR cutoff set by a spherical volume enclosing the experiment. On the other hand, an IR cutoff defined by the simply-connected spatial volume containing the trajectories of the muons, implies a correction to the muon magnetic moment which may have already been observed.

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