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Effect of three-pion unitarity on resonance poles from heavy meson decays

We study the final state interaction in 3-pion decay of meson resonances at the Excited Baryon Analysis Center (EBAC) of JLab. We apply the dynamical coupled-channels formulation which has been extensively used by EBAC to extract N* information. The formulation satisfies the 3-pion unitarity condition which has been missed in the existing works with the isobar models. We report the effect of the 3-pion unitarity on the meson resonance pole positions and Dalitz plot.

preprint2011arXivOpen access
Satoshi X. Nakamura
hep-exhep-phnucl-exnucl-th
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Open access1 author4 topics
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Satoshi X. Nakamura

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