The decays

in the extended Nambu-Jona-Lasinio model
M. K. Volkov, A. A. Pivovarov
Bogoliubov Laboratory of Theoretical Physics, JINR, 141980 Dubna, Russia
Abstract
The decays
are
described in the framework of the extended Nambu-Jona-Lasinio model. Both
full and differential widths of these decays are calculated. The vector and
scalar channels are considered. In the vector channel, the subprocesses with
the intermediate K*(892) and K*(1410) mesons play the main role. In
the scalar channel, the subprocesses with the intermediate K0*(800)
and K0*(1430) mesons are taken into account. The scalar channel gives
an insignificant contribution to the full width of the decay
. The obtained results are in satisfactory
agreement with the experimental data. The prediction for the width of the
process
is made.