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Muon Anomalous Magnetic Moment in a SU(4) ? U(1)N Model Without Exotic Electric Charges | Science Publications

机译:SU(4)中的Muon异常磁矩?没有奇异电荷的U(1)N模型|科学出版物

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> >Westudy an electroweak gauge extension of the standard model, so called 3-4-1 model, which does not contain exotic electriccharges and it is anomaly free. We discuss phenomenological constraints of themodel and compute all the corrections to the muon magnetic moment. Mainly, wediscuss different mass regimes and their impact on this correction, derivingfor the first time direct limits on the masses of the neutral fermions andcharged vector bosons. Interestingly, the model could address the reported muonanomalous magnetic moment excess, however it would demands a rather low scaleof symmetry breaking, far below the current electroweak constraints on themodel. Thus, if this excess is confirmed in the foreseeable future by the g-2experiment at FERMILAB, this 3-4-1 model can be decisively ruled out since themodel cannot reproduce a sizeable and positive contribution to the muonanomalous magnetic moment consistent with current electroweak limits.
机译: > > Westudy是标准模型的弱电规扩展,即所谓的3-4-1模型,它不包含外来电荷,并且没有异常。我们讨论了模型的现象学约束,并计算了对μ子磁矩的所有校正。主要是,我们讨论了不同的质量体系及其对这种校正的影响,这是首次对中性费米子和带电矢量玻色子的质量产生直接的限制。有趣的是,该模型可以解决所报告的离子异常磁矩过大的问题,但是它将需要相当低的对称破坏规模,远低于模型上当前的电弱约束。因此,如果FERMILAB的g-2实验在可预见的将来确认了这种过量,则该3-4-1模型可以被决定性地排除,因为该模型无法对与当前电弱极限相一致的粘膜异常磁矩产生可观的正贡献。 。

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