The Origin of Mass

Abstract

Dynamical chiral symmetry breaking and confinement are two crucial features of Quantum Chromodynamics responsible for the nature of the hadron spectrum. These phenomena, presumably coincidental, can account for 98% of the mass of our visible universe. In this set of lectures, I shall present an introductory review of them in the light of the Schwinger-Dyson equations.

Comments: Lectures delivered at the XIII Mexican School on Particles and Fields, Sonora, Mexico, 2-11 Oct, 2008. 20 pages, 15 figures