Scattering amplitudes in gauge theories [electronic resource] / Johannes M. Henn, Jan C. Plefka.

Scattering amplitudes in gauge theories [electronic resource] / Johannes M. Henn, Jan C. Plefka.

9783642540226 electronic book
3642540228 electronic book
9783642540219

Heidelberg : Springer, 2014.

English

1 online resource (xv, 195 pages) : illustrations.

10.1007/978-3-642-54022-6 doi

QC793.3.G38

530.14/35

At the fundamental level, the interactions of elementary particles are described by quantum gauge field theory. The quantitative implications of these interactions are captured by scattering amplitudes, traditionally computed using Feynman diagrams. In the past decade tremendous progress has been made in our understanding of and computational abilities with regard to scattering amplitudes in gauge theories, going beyond the traditional textbook approach. These advances build upon on-shell methods that focus on the analytic structure of the amplitudes, as well as on their recently discovered hidden symmetries. In fact, when expressed in suitable variables the amplitudes are much simpler than anticipated and hidden patterns emerge. These modern methods are of increasing importance in phenomenological applications arising from the need for high-precision predictions for the experiments carried out at the Large Hadron Collider, as well as in foundational mathematical physics studies on the S-matrix in quantum field theory. Bridging the gap between introductory courses on quantum field theory and state-of-the-art research, these concise yet self-contained and course-tested lecture notes are well-suited for a one-semester graduate level course or as a self-study guide for anyone interested in fundamental aspects of quantum field theory and its applications. The numerous exercises and solutions included will help readers to embrace and apply the material presented in the main text.

Includes bibliographical references.

Access limited to authorized users.

Description based on print version record.

Lecture notes in physics ; v.883. 0075-8450

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