With an analytical solutions of DGLAP evolution equations based on the Laplace transform method, we find the fragmentation functions (FFs) of neutral mesons, π0π0 and k0k0 at NLO approximation. We also calculated the total fragmentation functions...

In this paper, we use the time-super-operator formalism and the two-level

Friedrichs model to obtain a phenomenological model of mesons decay. Our

approach provides a fairly good estimation of the CP-symmetry ...