Regge-Pole Content of Chiral and Gauge Field Theories
- 15 October 1971
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 4 (8), 2320-2330
- https://doi.org/10.1103/physrevd.4.2320
Abstract
The high-energy limits of the 4-pion and 6-pion tree-approximation amplitudes in the nonlinear chiral-invariant Lagrangian and of the scattering amplitude in massive Yang-Mills theory are investigated in order to see whether Reggeization of elementary particles occurs. We find that the 4- and 6-pion amplitudes are dominated asymptotically by exchange of Regge poles with quantum numbers of the and mesons, respectively. These trajectories are regarded as "ancestors," because and particles are not present in the initial Lagrangian. The scattering amplitude is dominated by the exchange of quantum numbers of the meson, but there are two trajectories present, so that Reggeization does not occur. Nevertheless, in all amplitudes computed there is a striking regularity in the dominance of high-energy limits by the exchange of quantum numbers of the and mesons.
Keywords
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