The chirality-flow formalism for the standard model

Abstract

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.

35 pages, published version with fixed missing factor of 1/\sqrt{2} in VVV vertex in table 4

References in corpus (2)

• A resource for signs and Feynman diagrams of the Standard Model
• On-shell constructibility of Born amplitudes in spontaneously broken gauge theories

Cited by in corpus (2)

• Improving Colour Computations in MadGraph5_aMC@NLO and Exploring a 1/Nc Expansion
• Automating scattering amplitudes with chirality flow