论文标题
标准模型有效场理论中的尺度异常
Gauge anomalies in the Standard-Model Effective Field Theory
论文作者
论文摘要
如果将标准模型理解为有效现场理论的第一项，则必须在有效的现场理论扩展中按顺序制定并履行顺序。我们引起人们对这个问题的关注，并在Electroweak量表上详细研究了有效场理论的异常。最终结果是操作员系数的一组总和规则。这些条件是该理论的内部一致性所必需的，在实验数据的分析中实施时会导致许多现象学后果。特别是，它们不仅减少了不同物理过程中的自由参数的数量，而且有可能将过程与不同的风味含量联系起来。相反，违反这些条件的行为必然意味着与Electroweak能量量表相关的未发现的非脱偶联的新物理。
If the Standard Model is understood as the first term of an effective field theory, the anomaly-cancellation conditions have to be worked out and fulfilled order by order in the effective field-theory expansion. We bring attention to this issue and study in detail a subset of the anomalies of the effective field theories at the electroweak scale. The end result is a set of sum rules for the operator coefficients. These conditions, which are necessary for the internal consistency of the theory, lead to a number of phenomenological consequences when implemented in analyses of experimental data. In particular, they not only decrease the number of free parameters in different physical processes but have the potential to relate processes with different flavor content. Conversely, a violation of these conditions would necessarily imply the existence of undetected non-decoupling new physics associated with the electroweak energy scale.
