A new Wilson line-based action for gluodynamics
Abstract
We perform a canonical transformation of fields that brings the Yang-Mills action in the light-cone gauge to a new classical action, which does not involve any triple-gluon vertices. The lowest order vertex is the four-point MHV vertex. Higher point vertices include the MHV and $$\overline{\mathrm{MHV}}$$ vertices, that reduce to the corresponding amplitudes in the on-shell limit. In general, anyn-leg vertex has 2≤ m ≤ n -2 negative helicity legs. The canonical transformation of fields can be compactly expressed in terms of path-ordered exponentials of fields and their functional derivative. We apply the new action to compute several tree-level amplitudes, up to 8-point NNMHV amplitude, and find agreement with the standard methods. The absence of triple-gluon vertices results in fewer diagrams required to compute amplitudes, when compared to the CSW method and, obviously, considerably fewer than in the standard Yang-Mills action.
- Authors:
-
- AGH - Univ. of Science and Technology, Krakow (Poland). Faculty of Physics
- Univ. of California, Davis, CA (United States). Center for Quantum Mathematics and Physics (QMAP)
- Publication Date:
- Research Org.:
- Pennsylvania State Univ., University Park, PA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1850798
- Grant/Contract Number:
- SC0002145
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of High Energy Physics (Online)
- Additional Journal Information:
- Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2021; Journal Issue: 7; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Nature
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Physics; Effective Field Theories; Gauge Symmetry; Scattering Amplitudes
Citation Formats
Kakkad, Hiren, Kotko, Piotr, and Stasto, Anna. A new Wilson line-based action for gluodynamics. United States: N. p., 2021.
Web. doi:10.1007/jhep07(2021)187.
Kakkad, Hiren, Kotko, Piotr, & Stasto, Anna. A new Wilson line-based action for gluodynamics. United States. https://doi.org/10.1007/jhep07(2021)187
Kakkad, Hiren, Kotko, Piotr, and Stasto, Anna. Fri .
"A new Wilson line-based action for gluodynamics". United States. https://doi.org/10.1007/jhep07(2021)187. https://www.osti.gov/servlets/purl/1850798.
@article{osti_1850798,
title = {A new Wilson line-based action for gluodynamics},
author = {Kakkad, Hiren and Kotko, Piotr and Stasto, Anna},
abstractNote = {We perform a canonical transformation of fields that brings the Yang-Mills action in the light-cone gauge to a new classical action, which does not involve any triple-gluon vertices. The lowest order vertex is the four-point MHV vertex. Higher point vertices include the MHV and $\overline{\mathrm{MHV}}$ vertices, that reduce to the corresponding amplitudes in the on-shell limit. In general, anyn-leg vertex has 2≤ m ≤ n -2 negative helicity legs. The canonical transformation of fields can be compactly expressed in terms of path-ordered exponentials of fields and their functional derivative. We apply the new action to compute several tree-level amplitudes, up to 8-point NNMHV amplitude, and find agreement with the standard methods. The absence of triple-gluon vertices results in fewer diagrams required to compute amplitudes, when compared to the CSW method and, obviously, considerably fewer than in the standard Yang-Mills action.},
doi = {10.1007/jhep07(2021)187},
journal = {Journal of High Energy Physics (Online)},
number = 7,
volume = 2021,
place = {United States},
year = {2021},
month = {7}
}
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