Using AdS/CFT to Calculate QCD Properties

Abstract

Our aim in this project is to build a model on the AdS × S 5 spacetime which shows charac- teristics of chiral symmetry breaking in N f = 2 QCD and its predictions matches. We start with the basics of the AdS/CFT correspondence and study a five-dimensional model which simulates the low-energy properties of QCD. We also discuss large-N theories and chiral symmetry breaking in N f = 2 QCD along the way. The model has three parameters which are fixed by masses, decay constants and couplings of vector and axial mesons. Later, we propose a D3 − D7 brane system emulating similar results.