论文标题
$ c $和$ cp $违反有效的现场理论
$C$ and $CP$ violation in effective field theories
论文作者
论文摘要
寻求同时违反$ c $和$ cp $对称性的新来源在1960年代很受欢迎，此后大部分被忽视了半个多世纪。在这项工作中，我们依靠所谓的标准模型有效现场理论的完整运算符和低能的有效现场理论，重新访问打破$ c $和$ cp $的基本夸克级运算符。有了手性扰动理论的形式主义，我们将这些夸克操作员与轻质的物理学相匹配，得出$ c $ - 和$ cp $ -odd的lagrangians，用于$η$，$η'$，pion'$，pion领域的多个过程，并原理证明了估算的量表，以估算出较高的依赖性，这些量表估计了依赖的依赖性，这些量表不足以估算。
The quest for new sources of the simultaneous violation of $C$ and $CP$ symmetry was popular in the 1960s and has since been mostly neglected for more than half a century. In this work we revisit fundamental quark-level operators that break $C$ and $CP$ up to and including mass dimension 8 for flavor-conserving transitions, relying on the complete operator sets of the so-called Standard Model effective field theory and the low-energy effective field theory. With the formalism of chiral perturbation theory, we match these quark operators to light-meson physics, derive $C$- and $CP$-odd Lagrangians for several processes in the $η$, $η'$, and pion sectors, and furthermore, as a proof of principle, give estimates for the respective observables in explicit dependence of the underlying high-energy scale for new physics.
