Effective Field Theory
Abstract
These lectures provide an introduction to the basic ideas and methods of Effective Field Theory, and a description of a few interesting phenomenological applications in particle physics. The main conceptual foundations are discussed in sections 2 and 3, which cover the momentum expansion and the most important issues associated with the renormalization process. Section 4 presents an overview of Chiral Perturbation Theory, the lowenergy realization of Quantum Chromodynamics in the light quark sector. The Chiral Perturbation Theory framework is applied to weak transitions in section 5, where the physics of nonleptonic kaon decays is analyzed. The socalled Heavy Quark Effective Theory is briefly discussed in section 6. The electroweak chiral Effective Field Theory is described in section 7, which contains a brief overview of the effective Lagrangian associated with the spontaneous electroweak symmetry breaking. Some summarizing comments are finally given in section 8.
 Publication:

arXiv eprints
 Pub Date:
 June 1998
 DOI:
 10.48550/arXiv.hepph/9806303
 arXiv:
 arXiv:hepph/9806303
 Bibcode:
 1998hep.ph....6303P
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 106 pages, 20 figures. Lectures at the 1997 Les Houches Summer School "Probing the Standard Model of Particle Interactions"