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The gauge technique


Delbourgo, R, The gauge technique, Il Nuovo Cimento A, 49, (4) pp. 484-496. ISSN 0369-3546 (1979) [Refereed Article]

DOI: doi:10.1007/BF02815780


The gauge technique is a procedure whereby the Ward identities of a gauge theory are exatly solved to provide the longitudinal components of the Green's functions as functionals of the pure charged-line amplitudes. In quantum electrodinamics, for instance, the two-electron multiphoton amplitudes are determined by the electron propagator, which can itself be found via the Dyson-Schwinger equations: thus the procedure is gauge covariant and self-consistent. In this manner one readily obtains the infra-red properties of the amplitudes both for relativistic and nonrelativistic (axial) gauge-fixing schemes. The transverse components of the amplitudes are generated iteratively via the skeleton expansion using the gauge-covariant vertices and propagators determined by the gauge technique. As the method is nonperturbative, the prospect of applying it to the infra-red behaviour in chromodynamics looks promising.

Item Details

Item Type:Refereed Article
Research Division:Physical Sciences
Research Group:Particle and high energy physics
Research Field:Particle physics
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Delbourgo, R (Professor Robert Delbourgo)
ID Code:96530
Year Published:1979
Web of Science® Times Cited:70
Deposited By:Mathematics and Physics
Deposited On:2014-11-10
Last Modified:2014-11-10

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