The Chirality-Flow Formalism for Standard Model Calculations
Alnefjord, Joakim ; Lifson, Andrew LU ; Reuschle, Christian LU
and Sjödahl, Malin
LU
(2022)
14th International Workshop on Lie Theory and Its Applications in Physics, LT 2021
In Springer Proceedings in Mathematics and Statistics
396.
p.387-394
- Abstract
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... (More)
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.
(Less)
- author
- Alnefjord, Joakim
; Lifson, Andrew
LU
; Reuschle, Christian
LU
and Sjödahl, Malin
LU
- organization
- publishing date
- 2022
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Chirality flow, Feynman rules, Spinor-helicity formalism
- host publication
- International Workshop on Lie Theory and Its Applications in Physics
- series title
- Springer Proceedings in Mathematics and Statistics
- editor
- Dobrev, Vladimir
- volume
- 396
- pages
- 8 pages
- publisher
- Springer Gabler
- conference name
- 14th International Workshop on Lie Theory and Its Applications in Physics, LT 2021
- conference location
- Virtual, Online
- conference dates
- 2021-06-21 - 2021-06-25
- external identifiers
-
- scopus:85148032687
- ISSN
- 2194-1017
- 2194-1009
- ISBN
- 9789811947506
- DOI
- 10.1007/978-981-19-4751-3_34
- language
- English
- LU publication?
- yes
- id
- 0a00fccf-6a2e-43b6-9346-2323bbbc5667
- date added to LUP
- 2023-03-08 14:48:12
- date last changed
- 2024-04-04 06:07:52
@inproceedings{0a00fccf-6a2e-43b6-9346-2323bbbc5667,
abstract = {{<p>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.</p>}},
author = {{Alnefjord, Joakim and Lifson, Andrew and Reuschle, Christian and Sjödahl, Malin}},
booktitle = {{International Workshop on Lie Theory and Its Applications in Physics}},
editor = {{Dobrev, Vladimir}},
isbn = {{9789811947506}},
issn = {{2194-1017}},
keywords = {{Chirality flow; Feynman rules; Spinor-helicity formalism}},
language = {{eng}},
pages = {{387--394}},
publisher = {{Springer Gabler}},
series = {{Springer Proceedings in Mathematics and Statistics}},
title = {{The Chirality-Flow Formalism for Standard Model Calculations}},
url = {{http://dx.doi.org/10.1007/978-981-19-4751-3_34}},
doi = {{10.1007/978-981-19-4751-3_34}},
volume = {{396}},
year = {{2022}},
}