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The Pinch Technique and its Applications to Non-Abelian Gauge Theories

Non-Abelian gauge theories, such as quantum chromodynamics (QCD) or electroweak theory, are best studied with the aid of Green's functions that are gauge-invariant off-shell, but unlike for the photon in quantum electrodynamics, conventional graphical constructions fail. The pinch technique provides a systematic framework for constructing such Green's functions, and has many useful applications. Beginning with elementary one-loop examples, this book goes on to extend the method to all orders, showing that the pinch technique is equivalent to calculations in the background field Feynman gauge. The Schwinger–Dyson equations are derived within the pinch technique framework, and are used to show how a dynamical gluon mass arises in QCD. Finally the volume turns to its many applications. This book is ideal for elementary particle theorists and graduate students.

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: Cambridge University Press.,
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English
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9781009402415
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NONE
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text
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computer
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online resource
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pinch technique
one loop
Batalin–Vilkovisky framework
gauge technique
Schwinger–Dyson equations
non-perturbative gluon mass
quantum solitons
nexuses
sphalerons
fractional topological charge
electroweak theory
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agus
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