"Quantum field theory." . . "Quantum chromodynamics." . . "Quantum Field Theories, String Theory." . . "Physics." . . "Störungstheorie." . . "Quantum theory." . . "Quantenchromodynamik." . . "Elementary Particles, Quantum Field Theory." . . . "soft collinear" . . "Introduction to soft-collinear effective theory"@en . "Introduction to soft-collinear effective theory" . . . . "Electronic books"@en . . . . "Introduction to Soft-Collinear Effective Theory" . . . . . . . . . . "Among resummation techniques for perturbative QCD in the context of collider and flavor physics, soft-collinear effective theory (SCET) has emerged as both a powerful and versatile tool, having been applied to a large variety of processes, from B-meson decays to jet production at the LHC. This book provides a concise, pedagogical introduction to this technique. It discusses the expansion of Feynman diagrams around the high-energy limit, followed by the explicit construction of the effective Lagrangian - first for a scalar theory, then for QCD. The underlying concepts are illustrated with the quark vector form factor at large momentum transfer, and the formalism is applied to compute soft-gluon resummation and to perform transverse-momentum resummation for the Drell-Yan process utilizing renormalization group evolution in SCET. Finally, the infrared structure of n-point gauge-theory amplitudes is analyzed by relating them to effective-theory operators. This text is suitable for graduate students and non-specialist researchers alike as it requires only basic knowledge of perturbative QCD."@en . . . . . . .