Spectrum of Radial Excitations of the rho - and omega - Mesons and a Possible Existence of rho sub g - and omega sub g - Hybrides.

摘要

On the basis of vector meson dominance (VMD), the joint analysis of new experimental data concerning e/sup +/e/sup -/ -> omega PI/sup 0/, PI/sup +/PI/sup -/PI/sup 0/ reactions and TAU -> NU/sub (sub t)au omega /PI decay is made. It is shown that their most consistent description is obtained in the assumption of the existence of three resonances of approximately 1425, 1625 an d 1750 MeV. Their total widths and widths of leptonic decays per e/sup +/e/sup -/-pair are evaluated. It follows from the evaluations that none of the resonances can be the orbital D-state. Interpretation of the resonances as radial excitations /1425 / and /1750/ of rho- or omega -mesons and qq-barg-hybride /1625/ state is discussed. 21 refs.; 3 figs.; 4 tabs. (Atomindex citation 19:065311)