On the mass, width and coupling constants of the f0(980) R. Escribano, A. Gallegos, J.L. Lucio M., G. Moreno and J. Pestieau Eur. Phys. J. C, 28 1 (2003) 107-114 Published online: 03 March 2003 DOI: 10.1140/epjc/s2003-01140-6