Exploring the di-photon decay of a light Higgs boson in the MSSM with explicit CP violation S. Hesselbach, S. Moretti, S. Munir and P. Poulose Eur. Phys. J. C, 54 1 (2008) 129-147 Published online: 26 January 2008 DOI: 10.1140/epjc/s10052-007-0503-4