CP violation and CKM predictions from discrete torsion

We present a supersymmetric D-brane model that has CP spontaneously broken by discrete torsion. The low energy physics is largely independent of the compactification scheme and the Kahler metric has `texture zeros' dictated by the choice of discrete torsion. This motivates a simple ansatz for the Kahler metric which results in a CKM matrix given in terms of two free parameters, hence we predict a single mixing angle and the CKM phase. The CKM phase is predicted to be close to pi/3. (C) 2003 Elsevier Science B.V. All rights reserved.