Effective Field Theory

Course Description

Effective field theory is a fundamental framework to describe physical systems with quantum field theory. Part I of this course covers common tools used in effective theories: identifying degrees of freedom and symmetries; power counting expansions (dimensional and otherwise); field redefinitions; bottom-up and top-down effective theories; fine-tuned effective theories; matching and Wilson coefficients; reparameterization invariance; and advanced renormalization group techniques. Main examples are taken from particle and nuclear physics. Part II of this course is an in depth study of the Soft-Collinear Effective Theory (SCET), an effective theory for hard interactions in collider physics.

Copyright Information

Iain Stewart. 8.851 Effective Field Theory, Spring 2013. (Massachusetts Institute of Technology: MIT OpenCourseWare), http://ocw.mit.edu (Accessed 31 Jan, 2015). License: Creative Commons BY-NC-SA

Course Introduction Video

Effective Field Theory
Example Effective Field Theories derived from Quantum Field Theory. (Image by Iain Stewart)



 

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Video Lectures & Study Materials

Visit the official course website for more study materials: http://ocw.mit.edu/courses/physics/8-851-effective-field-theory-spring-2013/

# Lecture Play Lecture
I. Introduction to Effective Field Theory
1 Introduction to Effective Field Theory (EFT) (1:19:40) Play Video
2 Dimensional Power Counting (1:25:19) Play Video
3 Field Redefinitions (1:24:41) Play Video
4 Matching and Decoupling (1:21:59) Play Video
5 Classic Operator Renormalization Group Equations (RGE) (1:22:00) Play Video
6 Chiral Lagrangians (1:19:07) Play Video
7 Chiral Loops (1:26:28) Play Video
II. Heavy Quark Effective Theory
8 Heavy Quark Effective Theory (HQET) (1:19:15) Play Video
9 HQET Matching & Power Corrections (1:20:23) Play Video
10 HQET Examples (1:23:11) Play Video
11 Renormalons (1:22:33) Play Video
12 More Renormalons (1:21:57) Play Video
13 EFT with Fine Tuning (1:23:23) Play Video
14 EFT with Fine Tuning Part 2 (1:23:47) Play Video
III. Soft-Collinear Effective Theory
15 Soft-Collinear Effective Theory (SCET) Introduction (1:26:56) Play Video
16 SCET Collinear Wilson Lines (1:21:12) Play Video
17 SCET Multipole Expansion (1:24:09) Play Video
18 SCET Beyond Tree Level (1:21:47) Play Video
19 SCET Beyond Tree Level 2 (1:22:42) Play Video
20 SCET Wilson Coefficients (1:27:13) Play Video
21 SCET Sudakov Logarithms (1:22:50) Play Video
22 SCET for DIS (1:21:01) Play Video
23 SCET for Dijets (1:25:35) Play Video
24 SCETII (1:18:09) Play Video
25 SCET_2 Rapidity RGE (1:23:03) Play Video
26 SCET for LHC (1:21:41) Play Video

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