FOCUS results from Dalitz plot analyses of Ds+ and D+ to π+π−π+ are presented. The K-matrix formalism is applied to charm decays for the first time, which allows us to fully exploit the already existing knowledge coming from light- meson spectroscopy experiments. In particular all the measured dynamics of the S-wave ππ scattering, characterized by broad/overlapping resonances and large non-resonant background, can be properly included. This Letter studies the extent to which the K-matrix approach is able to reproduce the observed Dalitz plot and thus help us to understand the underlying dynamics. The results are discussed along with their possible implications for the controversial σ meson.
Dalitz plot analysis of D-s(+) and D+ decay to pi(+) pi(-) pi(+) using the K-matrix formalism
BONOMI, Germano;G. Liguori;
2004-01-01
Abstract
FOCUS results from Dalitz plot analyses of Ds+ and D+ to π+π−π+ are presented. The K-matrix formalism is applied to charm decays for the first time, which allows us to fully exploit the already existing knowledge coming from light- meson spectroscopy experiments. In particular all the measured dynamics of the S-wave ππ scattering, characterized by broad/overlapping resonances and large non-resonant background, can be properly included. This Letter studies the extent to which the K-matrix approach is able to reproduce the observed Dalitz plot and thus help us to understand the underlying dynamics. The results are discussed along with their possible implications for the controversial σ meson.File | Dimensione | Formato | |
---|---|---|---|
e831_plb585_2004_200.pdf
gestori archivio
Tipologia:
Full Text
Licenza:
DRM non definito
Dimensione
782.23 kB
Formato
Adobe PDF
|
782.23 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.