Generalized ward identity for the quark self-energy and the quark-quark-gluon vertex in the light-cone gauge

1984 ◽  
Vol 140 (5-6) ◽  
pp. 417-420 ◽  
Author(s):  
George Leibbrandt ◽  
Su-Long Nyeo
Keyword(s):  
Light Cone ◽  
Ward Identity ◽  
Light Cone Gauge ◽  
Gluon Vertex ◽  
Self Energy

〈q¯q〉component of the quark self-energy in the light-cone gauge

1989 ◽  
Vol 40 (8) ◽  
pp. 2669-2671 ◽  
Author(s):  
V. Elias ◽  
T. G. Steele
Keyword(s):  
Light Cone ◽  
Light Cone Gauge ◽  
Self Energy

One-loop gluon self-energy in the light-cone gauge

1986 ◽  
Vol 180 (1-2) ◽  
pp. 121-124 ◽  
Author(s):  
Marco Dalbosco
Keyword(s):  
Light Cone ◽  
Light Cone Gauge ◽  
Self Energy

PLANAR AND LIGHT-CONE GAUGES WITH A CAUSAL SINGLE-POLE PRESCRIPTION

1992 ◽  
Vol 07 (26) ◽  
pp. 6509-6521 ◽  
Author(s):  
A. BURNEL ◽  
H. CAPRASSE
Keyword(s):  
Light Cone ◽  
Ward Identity ◽  
Degrees Of Freedom ◽  
Exchange Contribution ◽  
Gluon Exchange ◽  
Self Energy ◽  
The Difference

The gluon-exchange contribution to the gluon self-energy is computed in the planar and light-cone gauges with the unique single-pole causal prescription. In both cases the result does not satisfy the Ward identity. This could be related to the difference between the numbers of degrees of freedom in configuration and momentum spaces and points out a violation of unitarity in true axial gauges.

scholarly journals Flat self-dual gravity

2021 ◽  
Vol 2021 (8) ◽  
Author(s):  
Kirill Krasnov ◽  
Evgeny Skvortsov
Keyword(s):  
Light Cone ◽  
Space Time ◽  
Kinetic Term ◽  
Light Cone Gauge ◽  
Yang Mills ◽  
Covariant Action ◽  
Chiral Interaction ◽  
Double Copy

Abstract We construct a new covariant action for “flat” self-dual gravity in four space-time dimensions. The action has just one term, but when expanded around an appropriate background gives rise to a kinetic term and a cubic interaction. Upon imposing the light-cone gauge, the action reproduces the expected chiral interaction of Siegel. The new action is in many ways analogous to the known covariant action for self-dual Yang-Mills theory. There is also a sense in which the new self-dual gravity action exhibits the double copy of self-dual Yang-Mills structure.

TOPOLOGICAL CONFORMAL ALGEBRA IN POLYAKOV’S LIGHT-CONE GAUGE GRAVITY

1992 ◽  
Vol 07 (35) ◽  
pp. 3291-3302 ◽  
Author(s):  
KIYONORI YAMADA
Keyword(s):  
Light Cone ◽  
Matter Field ◽  
Conformal Algebra ◽  
Two Dimensional ◽  
Topological Algebras ◽  
Light Cone Gauge ◽  
Brst Cohomology ◽  
Dimensional Gravity ◽  
Conformal Gauge ◽  
Gauge Gravity

We show that the two-dimensional gravity coupled to c=−2 matter field in Polyakov’s light-cone gauge has a twisted N=2 superconformal algebra. We also show that the BRST cohomology in the light-cone gauge actually coincides with that in the conformal gauge. Based on this observation the relations between the topological algebras are discussed.

EQUIVALENCE OF TWO-DIMENSIONAL GRAVITIES

1990 ◽  
Vol 05 (16) ◽  
pp. 1251-1258 ◽  
Author(s):  
NOUREDDINE MOHAMMEDI
Keyword(s):  
Gauge Theory ◽  
Explicit Solution ◽  
Light Cone ◽  
Equations Of Motion ◽  
Two Dimensional ◽  
Induced Gravity ◽  
Light Cone Gauge ◽  
Dimensional Gravity ◽  
The Relationship ◽  
Chern Simons

We find the relationship between the Jackiw-Teitelboim model of two-dimensional gravity and the SL (2, R) induced gravity. These are shown to be related to a two-dimensional gauge theory obtained by dimensionally reducing the Chern-Simons action of the 2+1 dimensional gravity. We present an explicit solution to the equations of motion of the auxiliary field of the Jackiw-Teitelboim model in the light-cone gauge. A renormalization of the cosmological constant is also given.

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