Heavy Isovector Resonances in e^+e^- annihilation, in the decay J/psi-->pi^+pi^-pi^0 and in the reaction K^-p-->pi^+pi^-Lambda

Details Heavy Isovector Resonances in e^+e^- annihilation, in the decay J/psi-->pi^+pi^-pi^0 and in the reaction K^-p-->pi^+pi^-Lambda Heavy Isovector Resonances in e^+e^- annihilation, in the decay J/psi-->pi^+pi^-pi^0 and in the reaction K^-p-->pi^+pi^-Lambda

1996-07-23

arxiv.org/abs/hep-ph/9607398v1

Phys.Atom.Nucl. 60 (1997) 1011-1019; Yad.Fiz. 60 (1997) 1131-1140

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, ReVTeX, 7 Postscript figures

Scientific paper

The results of an analysis are presented of some recent data on the reactions $e^+e^-\to\pi^+\pi^-\pi^+\pi^-$, $e^+e^-\to\pi^+\pi^-\pi^0\pi^0$ with the subtracted $\omega\pi^0$ events, $e^+e^-\to\omega\pi^0$, $e^+e^-\to\eta \pi^+\pi^-$, $e^+e^-\to\pi^+\pi^-$, $J/\psi\to\pi^+\pi^-\pi^0$ and $K^-p\to\pi^+\pi^-\Lambda$, upon taking into account both the strong energy dependence of the partial widths on energy and the previously neglected mixing of the $\rho$ type resonances. The above effects are shown to exert an essential influence on the specific values of masses and coupling constants of heavy resonances and hence are necessary to be accounted for in establishing their true nature.

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