The chirality-flow formalism for the standard model

Joakim Alnefjord, Andrew Lifson, Christian Reuschle, Malin Sjodahl

Research output: Contribution to journalArticlepeer-review


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 sl(2 , 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.

Original languageEnglish
Article number371
JournalEuropean Physical Journal C
Issue number4
Publication statusPublished - 2021 Apr 1

Subject classification (UKÄ)

  • Subatomic Physics


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