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Title: 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:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]
  1. AGH - Univ. of Science and Technology, Krakow (Poland). Faculty of Physics
  2. 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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