PoS - Proceedings of Science
Volume 289 - VIII International Workshop On Charm Physics (CHARM2016) - Parallel session: Multibody Hadronic Decays
Amplitude analysis of $D^{0} \rightarrow \pi^{+} \pi^{-} \pi^{+} \pi^{-}$ decays using CLEO-c data
P. D'argent*, J. Benton, J.P. Dalseno, E.M. Gersabeck, S. Harnew, P. Naik, C. Prouve, J. Rademacker and N. Skidmore
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Published on: February 28, 2017
The resonant substructure of the decay $D^{0} \rightarrow \pi^{+} \pi^{-} \pi^{+} \pi^{-}$ is studied by performing a full five-dimensional amplitude analysis. Preliminary results based on data collected by the CLEO-c detector are presented. This is the largest dataset of $D^{0} \rightarrow \pi^{+} \pi^{-} \pi^{+} \pi^{-}$ decays analysed in this way to-date. The two most significant contributions are $D^{0} \to a_{1}(1260)^{+} \, \pi^{-}$ and $D^{0} \to \rho(770)^{0} \, \rho(770)^{0}$. The line shape, mass and width of the $a_{1}(1260)$ resonance are determined, and model-independent studies of the line shapes of several resonant contributions are preformed.
DOI: https://doi.org/10.22323/1.289.0084
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