Introduction to soft-collinear effective theory [electronic resource] / Thomas Becher, Alessandro Broggio, Andrea Ferroglia.

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Introduction to soft-collinear effective theory [electronic resource] / Thomas Becher, Alessandro Broggio, Andrea Ferroglia.

9783319148489 electronic book
3319148486 electronic book
9783319148472

Cham : Springer, 2015.

English

1 online resource (xi, 208 pages) : illustrations.

10.1007/978-3-319-14848-9 doi

QC174.45

530.14/3

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.

Includes bibliographical references.

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Online resource; title from PDF title page (SpringerLink, viewed March 12, 2015).

Lecture notes in physics ; volume 896.

Print version: 9783319148472

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