Quasi Three-Body Decay of D Meson

The aim of this work is to provide a phenomenological analysis of the contribution of D-0 meson to (K) over bar * (892)(0) pi(+)pi(-) ((K) over bar * (892)(0) -> pi(+) K-), K-pi(+)omega (omega -> pi(+)pi(-pi 0)) and K- pi(+)phi (phi(1020) -> K+ K-) quasi-three-body decays. The analysis of mentioned multi-body decays is such as to factorize into the three-body decay and several channels observed. Hadronic three-body decays receive both resonant and non-resonant contribution. Based on the factorization method, there are tree and emission annihilation diagrams for these decay modes. In the case of D to vector pseudoscalar states appeared in factored terms, the matrix elements of the vector and axial vector currents between the D and PV mesons can be computed by using D*(+) pole. Considering the non-resonant and resonant amplitude in our computation, the theoretical values of the branching ratio are (9.78 +/- 0.46) x 10(-3), (2.74 +/- 0.17) x 10(-2), and (3.53 +/- 0.23) x 10(-5), while the experimental results of them are (9.9 +/- 2.3) x 10(-3), (2.7 +/- 0.5) x 10(-2), and (4 +/- 1.7) x 10(-5) respectively. Comparing computational analysis values with experimental values show that our results are in approximately agreement with them.