The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Andrew

Andrew Lifson

Affiliated

Andrew

The Chirality-Flow Formalism for Standard Model Calculations

Author

  • Joakim Alnefjord
  • Andrew Lifson
  • Christian Reuschle
  • Malin Sjödahl

Editor

  • Vladimir Dobrev

Summary, in English

Scattering amplitudes are often split up into their color (su(N) ) and kinematic components. Since the su(N) gauge part can be described using flows of color, one may anticipate that the su(2 ) ⊕ su(2 ) kinematic part can be described in terms of flows of chirality. In two recent papers we showed that this is indeed the case, introducing the chirality-flow formalism for standard model calculations. Using the chirality-flow method—which builds on and further simplifies the spinor-helicity formalism—Feynman diagrams can be directly written down in terms of Lorentz-invariant spinor inner products, allowing the simplest and most direct path from a Feynman diagram to a complex number. In this presentation, we introduce this method and show some examples.

Department/s

  • Theoretical Particle Physics - Has been reorganised

Publishing year

2022

Language

English

Pages

387-394

Publication/Series

Springer Proceedings in Mathematics and Statistics

Volume

396

Document type

Conference paper

Publisher

Springer Gabler

Topic

  • Subatomic Physics

Keywords

  • Chirality flow
  • Feynman rules
  • Spinor-helicity formalism

Conference name

14th International Workshop on Lie Theory and Its Applications in Physics, LT 2021

Conference date

2021-06-21 - 2021-06-25

Conference place

Virtual, Online

Status

Published

ISBN/ISSN/Other

  • ISSN: 2194-1017
  • ISSN: 2194-1009
  • ISBN: 9789811947506