# Effective Field Theory

8.EFTx is a graduate course on Effective Field Theory (EFT), which provides a fundamental framework to describe physical systems with quantum field theory. For residential students it is listed as 8.851.

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# Effective Field Theory

# Effective Field Theory

## What you'll learn

## Prerequisites

8.EFTx is a graduate course on Effective Field Theory (EFT), which provides a fundamental framework to describe physical systems with quantum field theory. For residential students it is listed as 8.851.

8.EFTx is a graduate course on Effective Field Theory (EFT), which provides a fundamental framework to describe physical systems with quantum field theory. For residential students it is listed as 8.851.

8.EFTx is an online version of MIT's graduate Effective Field Theory course. The course follows the MIT on-campus class 8.851, as it was given by Professor Iain Stewart in the Fall of 2013, and includes his video lectures, resource material on various effective theories, and a series of problems to facilitate learning the material. Anyone can register for the online version of the course, and students at MIT or Harvard can also register for 8.S851 for course credit.

Examples of effective theories we will cover are:

- The Standard Model as an effective field theory
- Integrating out the massive W, Z, Higgs, and top, chiral perturbation theory,
- Non-relativistic effective field theories including those with a large scattering length,
- Static sources and Heavy Quark Effective Theory (HQET),
- A theory for collider physics, the Soft-Collinear Effective Theory (SCET)

A graduate level course in Quantum Field Theory.

In addressing the material in this course we will assume familiarity with Quantum Field Theory, at the level of Peskin & Schroeder or Srednicki, such as might be obtained from having taken a graduate course on this subject. In particular we will assume knowledge of abelian and nonabelian gauge theories, constructing Lagrangians, renormalization, dimensional regularization, and the calculation of observables like cross sections. At the start of the course a review will be provided for material on the renormalization group and for material outlining the Standard Model of particle and nuclear physics as a quantum field theory.

MIT students are expected to spend 12 hours per week on 8.EFTx, and if you have the necessary background knowledge, we estimate that it will also take you 12 hours per week to do well.