论文标题
恢复干扰：SMEFT中异常的Gluon自我交往的框架和原理证明
Reviving the interference: framework and proof-of-principle for the anomalous gluon self-interaction in the SMEFT
论文作者
论文摘要
干扰不是正定的，因此它们可以在相空间上更改符号。如果干扰是积极而负面的区域的贡献几乎相互抵消，则很难衡量干扰效应。在本文中，我们提出了一种方法来量化可观察到的干扰阳性和阴性贡献的能力，从而恢复测量中的干扰效应。我们将此方法应用于SMEFT中异常的Gluon操作员，该方法是众所周知的干扰抑制作用。我们表明，我们只能使用干扰才能获得其系数的矛盾，类似于通过包括新物理幅度的平方获得的干扰。
Interferences are not positive-definite and therefore they can change sign over the phase space. If the contributions of the regions where the interference is positive and negative nearly cancel each other, interference effects are hard to measure. In this paper, we propose a method to quantify the ability of an observable to separate an interference positive and negative contributions and therefore to revive the interference effects in measurements. We apply this method to the anomalous gluon operator in the SMEFT for which the interference suppression is well-known. We show that we can get contraints on its coefficient, using the interference only, similar to those obtained by including the square of the new physics amplitude.
