论文标题

标准模型的手学流形式主义

The chirality-flow formalism for the standard model

论文作者

Alnefjord, Joakim, Lifson, Andrew, Reuschle, Christian, Sjodahl, Malin

论文摘要

在最近的一篇论文中,我们介绍了手学 - 流形式主义,这是一种基于左手和右手和右手$ \ mathrm {sl}(2,\ mathbb {c})$的简单和透明计算的方法。虽然我们以前的工作集中在树级的无质量QED和QCD上,但我们在这里将手性的形式主义扩展到了完整的(树级)标准模型,包括大量的颗粒和Electroweak互动 - $ W $ - 由于其手性质而简化了$ W $ - 互动。我们说明了如何使用一些代表性的示例立即写下Feynman图的值。

In a recent paper we introduced the chirality-flow formalism, a method for simple and transparent calculations of Feynman diagrams based on the left- and right-chiral $\mathrm{sl}(2,\mathbb{C})$ nature of spacetime. While our previous work focused on massless QED and QCD at tree-level, we here extend the chirality-flow formalism to the full (tree-level) Standard Model, including massive particles and electroweak interactions -- for which the $W$-interaction simplifies elegantly due to its chiral nature. We illustrate how values of Feynman diagrams can be immediately written down with some representative examples.

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