We present a study of the reaction e+e- --> pi+pi-pi0 at the phi peak W=M(phi)=1019.4 MeV observed with the KLOE detector at Dafne. The reaction is dominated by phi production and decay, e+e- --> phi --> pi+pi-pi0. From a fit to the Dalitz plot density distribution we obtain the rho-meson parameters for its three charge states. We also find the relative amplitudes for phi --> rhopi and phi -> pi+pi-pi0 and the cross-section for e+e- --> omega pi0 with omega --> pi+pi-.
Aloisio, A., Carboni, G., Santovetti, E., Messi, R., Ii, (2003). Study of the decay ϕ → π+ π- π⁰ with the KLOE detector. PHYSICS LETTERS. SECTION B, 561(1-2), 55-60 [10.1016/S0370-2693(03)00402-7].
Study of the decay ϕ → π+ π- π⁰ with the KLOE detector
CARBONI, GIOVANNI;SANTOVETTI, EMANUELE;MESSI, ROBERTO;
2003-01-01
Abstract
We present a study of the reaction e+e- --> pi+pi-pi0 at the phi peak W=M(phi)=1019.4 MeV observed with the KLOE detector at Dafne. The reaction is dominated by phi production and decay, e+e- --> phi --> pi+pi-pi0. From a fit to the Dalitz plot density distribution we obtain the rho-meson parameters for its three charge states. We also find the relative amplitudes for phi --> rhopi and phi -> pi+pi-pi0 and the cross-section for e+e- --> omega pi0 with omega --> pi+pi-.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
