Dispersive approach for three-particle final-states interactions: an applications to ω/φ → 3π

Igor Danilkin (JLab)

The talk is focussed on our recent studies of three-body final state interactions. We considered the decays ω/φ → 3π in the dispersive framework that is based on the Khuri-Treiman equation.  The inelastic contributions were parametrized by the power series in a suitably chosen conformal variable that properly account for the analytic properties of the amplitude.  Our results indicated that the final state interactions may be sizable.   In my talk the Dalitz plot distributions and integrated decay widths will be presented.  As a further application of the formalism I will also discuss the electromagnetic transition form factors of ω/φ → π⁰γ^∗.

 

[see arXiv:1409.7708, arXiv:1409.8652]

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