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Analytic model of Regge trajectories

R. Fiore·L. L. Jenkovszky·V. Magas·F. Paccanoni·A. Papa
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Abstract

A model for a Regge trajectory compatible with the threshold behavior required by unitarity and asymptotics in agreement with analyticity constraints is given in explicit form. The model is confronted in the time-like region with widths and masses of the mesonic resonances and, in the space-like region, the $ρ$ trajectory is compared with predictions derived from $π-N$ charge-exchange reaction. Breaking of the exchange degeneracy is studied in the model and its effect on both the masses and widths is determined.

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R. Fiore, L. L. Jenkovszky, V. Magas, F. Paccanoni, A. Papa. 2000-11-02. Analytic model of Regge trajectories. https://doi.org/10.1007/s100500170133

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