Regge trajectories for all flavours

A global analysis of meson masses for different flavours is attempted through a construction of linear Regge trajectories. Experimental data and phenomenological models are used for this purpose. A satisfactory formula is obtained for the dependence of the intercept and slope on quark masses. Two applications are presented. When analytically continued into the space-like region, our D-trajectory, exchanged in the t-channel, provides a good description of experimental data on charm production. When applied to the top system, our results confirm earlier results that neither top mesons nor toponium can exist as physical states