Chiral Perturbation Theory

Course description

The course is held in the second half of the spring semester 2016. It takes place on Thursdays (April 21 & 28, May 12, 19, 26, June 2) from 14-16 in room B1 and on Tuesdays (May 3 & 31) from 14-16 in room 119.

Our ability to make sense of quantum chromodynamics (QCD) at low energies is guided to a large extent by two principles: chiral symmetry and effective field theory. The model-independent marriage of the two is known as chiral perturbation theory (ChPT), a framework that allows one to perform a systematic analysis of the low-energy Green’s functions and scattering amplitudes of QCD. In this course, we will cover the basic concepts of ChPT for mesons, in particular, the notion of perturbing about a Nambu-Goldstone symmetry and the connection to effective Lagrangians. The construction of the ChPT Lagrangian for the strong and weak interactions will be outlined, with several applications to phenomenology discussed.


Dr. Lewis Tunstall