PHY573 Quantum Field Theory III

General Information

Lecturer: Prof. Gino Isidori  ( Y36 J82 )
Assistant: Dr. Dario Buttazzo ( Y36 J36 )
Lecture: Friday, 10:00 - 11:45, in ETH HIT F12
Exercises: Friday, 12:15 - 13:00, in ETH HIT F12
Module code: PHY573, 402-0845-60L
ECTS Credits: 6



In the first part we will discuss the basic concepts of EFTs, with particular attention to the concepts of decoupling of heavy degrees of freedom, matching and renormalization, chiral Lagrangians. The Standard Model viewed as an EFT will also be discussed as a specific application. The second part of the course is devoted to Supersymmetry, starting from the discussion of the SUSY algebra and its representations, to arrive, after the presentation of the superfield formalism, to the construction of the supersymmetric version of gauge field theories. A phenomenological discussion of the mechanisms of SUSY breaking and the construction of viable supersymmetric extensions of the Standard Model will also be presented. 

Main topics:

  • Introduction to Effective Field Theories
  • The Appelquist-Carrazone theorem 
  • The matching procedure
  • Chiral Lagrangians 
  • The SM as an EFTs
  • Composite-Higgs models
  • The SUSY algebra
  • Superspace and superfields
  • Supersymmetric field theories
  • Supersymmetric gauge theories
  • Supersymmetry breaking
  • The Minimal supersymmetric Standard Model


Detailed list of topics for the exam (PDF, 101 KB) (with indication of bibliographic references)


Suggested references


Part I (EFT):

Part II (SUSY):

  • M. Bertolini, Lectures on Supersymmetry
  • S. Martin, A Supersymmetry Primer
  • J. Wess and J. Bagger, "Supersymmetry and supergravity".
  • Mueller-Kirsten & Wiedemann, "Introduction to supersymmetry".
  • S. Weinberg, "The quantum theory of fields. Vol. 3: Supersymmetry".