Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-06-21
Eur.Phys.J.C18:555-561,2001
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages, LaTeX2e, 4 eps figures. Revised version accepted for publication in European Physical Journal C
Scientific paper
10.1007/s100520100548
The exchange-degeneracy of the mesonic $f$, $\omega $, $\rho $ and $a_{2}$ Regge trajectories, dominant at moderate and high energies in hadron elastic scattering, is analyzed from two viewpoints. The first one concerns the masses of the resonances lying on these trajectories; the second one deals with the total cross-sections and the ratios of the real to the imaginary parts of the forward amplitudes of hadron and photon induced reactions. Neither set of data supports exact exchange-degeneracy.
Desgrolard P.
Giffon M.
Martynov Evgenij
Predazzi Enrico
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