Complex amplitude phase motion in Dalitz plot heavy meson three body decay

Details Complex amplitude phase motion in Dalitz plot heavy meson three body decay Complex amplitude phase motion in Dalitz plot heavy meson three body decay

2002-11-06

arxiv.org/abs/hep-ph/0211078v1

Phys.Lett. B550 (2002) 135-139

Physics

High Energy Physics

High Energy Physics - Phenomenology

To appear in Physics Letters B

Scientific paper

10.1016/S0370-2693(02)02983-0

We propose a method to determine the phase motion of a complex amplitude in three body heavy meson decays. We show that the phase variation of a complex amplitude can be directly revealed through the interference observed in the Dalitz Plot region where it crosses with a well established resonant state. This method could be applied to the decays \d3pi and $D^+\to K^-\pi^+\pi^+$, to determine whether the low mass states $\sigma$ and $\kappa$, suggested by E791, have phase motions compatible with resonances.

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