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2D Kac-Moody symmetry of 4D Yang-Mills theory

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [2]
  1. Harvard Univ., Cambridge, MA (United States); Center for the Fundamental Laws of Nature, Harvard University, Cambridge, MA 02138
  2. Harvard Univ., Cambridge, MA (United States)

Scattering amplitudes of any four-dimensional theory with nonabelian gauge group G may be recast as two-dimensional correlation functions on the asymptotic twosphere at null in nity. The soft gluon theorem is shown, for massless theories at the semiclassical level, to be the Ward identity of a holomorphic two-dimensional G-Kac-Moody symmetry acting on these correlation functions. Holomorphic Kac-Moody current insertions are positive helicity soft gluon insertions. Furthermore, the Kac-Moody transformations are a CPT invariant subgroup of gauge transformations which act nontrivially at null in nity and comprise the four-dimensional asymptotic symmetry group.

Research Organization:
President & Fellows of Harvard College, Cambridge, MA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FG02-91ER40654
OSTI ID:
1362020
Alternate ID(s):
OSTI ID: 22610601
Journal Information:
Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 10 Vol. 2016; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (34)

4D scattering amplitudes and asymptotic symmetries from 2D CFT journal January 2017
Conformally soft photons and gravitons journal January 2019
Supertranslation hair of Schwarzschild black hole: a Wilson line perspective journal January 2020
A periodic table of effective field theories journal February 2017
Soft factorization in QED from 2D Kac-Moody symmetry journal February 2018
Asymptotic symmetries and subleading soft photon theorem in effective field theories journal May 2018
A d-dimensional stress tensor for Minkd+2 gravity journal May 2018
Flat holography and Carrollian fluids journal July 2018
Hamiltonian structure and asymptotic symmetries of the Einstein-Maxwell system at spatial infinity journal July 2018
S-matrix singularities and CFT correlation functions journal August 2017
Asymptotic symmetries and Weinberg’s soft photon theorem in Minkd+2 journal October 2019
Asymptotic symmetries in (d + 2)-dimensional gauge theories journal October 2019
Asymptotic structure of Einstein-Maxwell-dilaton theory and its five dimensional origin journal November 2019
Large gauge symmetries and asymptotic states in QED journal December 2016
Source and response soft charges for Maxwell theory on AdSd journal December 2019
Localisation of soft charges, and thermodynamics of softly hairy black holes journal July 2018
Celestial amplitudes and conformal soft theorems journal September 2019
Conformally soft theorem in gauge theory journal October 2019
Note on asymptotic symmetries and soft gluon theorems journal September 2017
Infrared divergences in QED revisited journal October 2017
2D Stress Tensor for 4D Gravity journal September 2017
Color Memory: A Yang-Mills Analog of Gravitational Wave Memory journal December 2017
Note on soft photons and Faddeev–Jackiw symplectic reduction of quantum electrodynamics in the eikonal limit journal September 2018
Infrared divergences in QED revisited text January 2017
Asymptotic Charges at Null Infinity in Any Dimension journal March 2018
Asymptotic Charges at Null Infinity in Any Dimension text January 2018
4D Scattering Amplitudes and Asymptotic Symmetries from 2D CFT text January 2016
Soft Factorization in QED from 2D Kac-Moody Symmetry text January 2017
Infrared Divergences in QED, Revisited text January 2017
A $d$-Dimensional Stress Tensor for Mink$_{d+2}$ Gravity text January 2017
Localisation of Soft Charges, and Thermodynamics of Softly Hairy Black Holes text January 2018
Note on soft photons and Faddeev-Jackiw symplectic reduction of quantum electrodynamics in the eikonal limit text January 2018
Conformally Soft Photons and Gravitons text January 2018
Flat holography and Carrollian fluids text January 2018

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