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Some of the next articles are maybe not open access.

Lattice Gauge Theories

AIP Conference Proceedings, 1989
In quantum mechanics non classical trajectories are allowed with a probability: $$ P\{ x(t)\} = {e^{ - {{S\{ x(t)\} } \over h}}} $$ (1) where the time is euclidean (t ---> it) and $$ P\{ x(t)\} = \int\limits_{ - \infty }^\infty {L[x(t),\dot x(t)]} $$ (1) When h goes to zero, the probability peaks at the minimum of the action , the ...
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Unified Gauge Theories

1993
The Glashow-Salam-Weinberg theory combines the electromagnetic and weak interactions within the framework of the gauge group SU(2) L × SU(1). This theory treats leptons and quarks on the same footing. However, the fact that leptons carry integer charge while the charge of quarks is 1/3 is needed as a basic input.
Berndt Müller, Walter Greiner
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Gauge Theories of Gravitation [PDF]

open access: possible, 1978
The theories of electromagnetism and gravitation are the best understood classical field theories. The former serves as model for gauge theories which are conjectured to describe weak and strong interactions. It is therefore natural to ask whether Einstein’s theory (G.R.) of gravitation is such a gauge theory. In G.R.
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Universal gauge theory

Physical Review D, 1990
It is shown that there is a "universal" group that contains the gauge groups of all Yang-Mills theories as subgroups. An analogue of Yang-Mills theory ("universal gauge theory") with this group as the invariance group is shown to exist in 3+1 space-time dimensions.
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Gauge theories in the light-cone gauge

Physical Review D, 1990
A canonical formulation, using equal-time commutation rules for canonically conjugate operator-valued fields, is given for quantum electrodynamics and Yang-Mills theory in the light-cone gauge. A gauge-fixing term is used that avoids all operator constraints by providing a canonically conjugate momentum for every field component. The theory is embedded
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Gauge Theories

2018
K. Grotz, H. V. Klapdor
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Gauge theories

1987
M. Göckeler, T. Schücker
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