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The Kπ and ππ S-wave amplitude from D-meson decays

Abstract.

The issue of and ππ S-wave amplitude is addressed using decays of D-mesons. Model-independent measurements of the phases of the π + π + and K - π + S-wave amplitude from D +π - π + π + and D +K - π + π + decays are discussed. The result indicates a deviation from the phase of the K - π + S-wave amplitude obtained by scattering experiments. This could be interpreted as an indication of the presence of 3-body final-state interaction, or in other words, that the phases from production and scattering process cannot be directly compared.

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Correspondence to A. C. dos Reis.

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dos Reis, A.C. The Kπ and ππ S-wave amplitude from D-meson decays. Eur. Phys. J. A 31, 474–478 (2007). https://doi.org/10.1140/epja/i2006-10249-7

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  • DOI: https://doi.org/10.1140/epja/i2006-10249-7

PACS.

  • 11.80.Et Partial-wave analysis
  • 11.80.La Multiple scattering
  • 13.30.Eg Hadronic decays
  • 13.30.Ce Leptonic, semileptonic, and radiative decays