Evidence for Light Scalar Resonances in Charm Meson Decays from Fermilab E791
نویسنده
چکیده
From Dalitz-plot analyses of D → πππ and D → Kππ decays, we find evidence for light and broad scalar resonances σ(500) and κ(800). From a Dalitz-plot analysis of D s → π ππ decays, we measure the masses and decay widths of the scalar resonances f0(980) and f0(1370).
منابع مشابه
Light Scalar Mesons in Charm Meson Decays
We present recent results on scalar light mesons based on Dalitz plot analyses of charm decays from Fermilab experiment E791. Low mass scalar mesons are found to have large contributions to the decays studied, D → Kππ and D,D s → πππ. These results demonstrate the importance of charm decays as a new environment for the study of light meson physics.
متن کامل/ 02 08 03 9 v 1 2 3 A ug 2 00 2 Light Scalar Mesons σ ( 500 ) , f 0 ( 980 ) and κ in Charm Meson Decays 1
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E791 is a high statistics charm experiment that acquired data at Fermilab during the 1991-1992 xed-target run. The experiment combined a fast data acquisition system with an open trigger. Over 2 10 events were collected with the Tagged Photon Spectrometer [1] using a 500 GeV beam. There were ve target foils with 15 mm centerto-center separations: one 0.5 mm thick platinum foil followed by four ...
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