  The coupled channel model of the a0(980) and a0(1450) resonances has been
constructed using the separable pion-eta and K-anti K interactions. We have
shown that two S-matrix poles corresponding to the a0(980) meson have
significantly different widths in the complex energy plane. The K-anti K to
pion-eta branching ratio, predicted in our model near the a0(1450) mass, is in
agreement with the result of the Crystal Barrel Collaboration. The K-anti K
interaction in the S-wave isovector state is not sufficiently attractive to
create a bound a0(980) meson.
