Fr. 63.00

Introduction to Soft-Collinear Effective Theory

English · Paperback / Softback

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Description

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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.

List of contents

From the Contents: Introduction.- The Strategy of Regions.- Scalar SCET.- Generalization to QCD.- Resummation by RG Evolution.- Threshold Resummation in Drell-Yan Production.- Transverse Momentum Resummation.- n-Jet Processes and IR Divergences of Gauge Theory Amplitudes.- Applications of SCET.- Summary of Notations and Conventions.- One-Loop Integrals.- Inverse Derivative Operator.- Wilson Lines and Gauge Transformations.- Momentum-Space Feynman Rules for Soft Wilson Lines.- Decoupling Transformation and the Gluon Kinetic Term.- Integrals for Transverse PDFs at NLO.- Color Space Formalism.- Anomalous Dimensions.

Product details

Authors Thomas Becher, Alessandro Broggio, Andrea Ferroglia
Publisher Springer, Berlin
 
Languages English
Product format Paperback / Softback
Released 09.06.2015
 
EAN 9783319148472
ISBN 978-3-31-914847-2
No. of pages 206
Dimensions 157 mm x 235 mm x 13 mm
Weight 362 g
Illustrations XI, 206 p. 64 illus., 50 illus. in color.
Series Lecture Notes in Physics
Subject Natural sciences, medicine, IT, technology > Physics, astronomy > Theoretical physics

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