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Physics and Astronomy (1)

scalar field theory

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1 results

1 - Quantum Field Theory Basics
François Gelis, Commissariat à l'Energie Atomique (CEA), Saclay
Book:

Problems in Quantum Field Theory

Published online:

13 August 2021

Print publication:

26 August 2021, pp 1-70
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Summary

This chapter is devoted to basic aspects of quantum field theory, ranging from the foundations to perturbation theory and renormalization, and is limited to the canonical formalism (functional methods are treated in Chapter 2) and to the traditional workflow (Lagrangian --> Feynman rules --> time-ordered products of fields --> scattering amplitudes) for the calculation of scattering amplitudes (the spinor-helicity formalism and on-shell recursion are considered in Chapter 4).The problems of this chapter deal with questions in scalar field theory and quantum electrodynamics, while non-Abelian gauge theories are discussed in Chapter 3.