Slave-boson mean-field theory of the Mott transition in the two-band Hubbard model A. Rüegg, M. Indergand, S. Pilgram and M. Sigrist Eur. Phys. J. B, 48 1 (2005) 55-64 Published online: 09 December 2005 DOI: 10.1140/epjb/e2005-00382-1