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S-wave and P-wave pion-pion and kaon-pion contributions to three-body decay processes in the Resonance-Spectrum Expansion

Authors: E. van Beveren and G. Rupp

Ref.: J. Phys. G: Nucl. Part. Phys. 34, 1789-1802 (2007)

Abstract: We study S- and P-wave pion-pion and kaon-pion distributions for the three-body production processes J/psi --> omega pi+ pi-, D+ --> K- pi+ pi+, D^{+} --> K+ pi+ pi-, and Ds+ --> K+ pi+ pi-, by applying the Resonance-Spectrum Expansion to the two-body subamplitudes. The results are compared to the corresponding signals reported by the BES, E791 and FOCUS collaborations. We find that the studied S- and P-wave channels can largely account for the observed structures in the data up to 1 GeV.

DOI: 10.1088/0954-3899/34/7/017

URL: arxiv.org