论文标题
修改不稳定颗粒和共振的戴森系列
Modifying the Dyson Series for Unstable Particles and Resonances
论文作者
论文摘要
在这项工作中，我们介绍了基于扰动单位性作为起点的Dyson系列的修改。提出的方法系统地避免了与不稳定颗粒作为中间状态的存在相关的奇异性和双重计数，同时，它不依赖于重新规定方案的特定选择。
In this work, we introduce a modification of the Dyson series based on the perturbative unitarity as a starting point. The presented approach systematically avoids singularities and double-counting related to the presence of unstable particles as intermediate states and, at the same time, it does not rely on a specific choice of the renormalization scheme.
