  Two-body decay widths of lowest lying and next-to-lowest lying scalar and
pseudoscalar mesons are studied in Generalized Linear Sigma Model (GLSM) of
low-energy QCD. This model which considers mixing between "two quark" and "four
quark" chiral nonets has been employed to investigate various decays and
scatterings in low energy region of QCD. In this paper, $\Gamma[f_0(980)
\rightarrow K \bar{K}]$ and $\Gamma[a_0(980) \rightarrow K \bar{K}]$ are
obtained and it is shown that two-body decay widths of lowest lying mesons are
well predicted by this model while for the next-to-lowest lying mesons, only
some of the decay widths agree with the experimental results. We have compared
the predicted decay widths in GLSM with the results obtained in single nonet
linear sigma model (SNLSM) to indicate that chiral nonet mixing greatly
improves the predictions of SNLSM for decay widths.
