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首页> 外文期刊>International Journal of Modern Physics, A. Particles and Fields, Gravitation, Cosmology >Muon anomalous magnetic moment in a SU(4) circle times U(1)(N) model
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Muon anomalous magnetic moment in a SU(4) circle times U(1)(N) model

机译:SU(4)圈中的Muon异常磁矩乘以U(1)(N)模型

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摘要

We study the muon anomalous magnetic moment in an electroweak model based on the gauge symmetry SU(4)(L) circle times U(1)(N), which has right-handed neutrinos in its spectrum, and no flavor changing neutral currents at tree level. We discuss relevant collider and electroweak constraints on the model, and derive the most stringent upper bounds on the scale of symmetry breaking based on the corrections to the muon magnetic moment. We conclude that a scale of symmetry breaking of around 2 TeV might explain the muon magnetic moment anomaly. In case the anomaly is otherwise resolved, using the current and projected sensitive of g-2 experiments, we rule out scales of symmetry breaking smaller than 3.5 TeV (5.5 TeV) at 1 sigma level.
机译:我们基于电势对称SU(4)(L)圆乘以U(1)(N)在电弱模型中研究μ子异常磁矩,该谱在谱中具有右旋中微子,并且没有风味改变中性电流树级别。我们讨论了模型上的相关对撞机和电弱约束,并基于对μ子磁矩的修正,得出了对称破坏尺度上最严格的上限。我们得出的结论是,对称断裂的程度大约为2 TeV,这可能解释了μon磁矩异常。如果通过使用g-2实验的当前灵敏度和预计灵敏度解决了异常,则可以排除1 sigma级别的对称尺度小于3.5 TeV(5.5 TeV)的情况。

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