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

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Tác giả: Daniele Binosi, John M Cornwall, Joannis Papavassiliou

Ngôn ngữ: eng

ISBN-13: 978-1009402415

Ký hiệu phân loại:

Thông tin xuất bản: Cambridge University Press, 2011

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Bộ sưu tập: Tài liệu truy cập mở

ID: 376320

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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