Dispersive analysis of ω /ℙ →3π,πγ∗

I. V. Danilkin, C. Fernández-Ramírez, P. Guo, V. Mathieu, D. Schott, M. Shi, A. P. Szczepaniak

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The decays ω/ℙ→3π are considered in the dispersive framework that is based on the isobar decomposition and subenergy unitarity. The inelastic contributions are parametrized by the power series in a suitably chosen conformal variable that properly accounts for the analytic properties of the amplitude. The Dalitz plot distributions and integrated decay widths are presented. Our results indicate that the final-state interactions may be sizable. As a further application of the formalism we also compute the electromagnetic transition form factors of ω/ℙ→π0γ∗.

Original languageEnglish (US)
Article number094029
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number9
StatePublished - May 27 2015

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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    Danilkin, I. V., Fernández-Ramírez, C., Guo, P., Mathieu, V., Schott, D., Shi, M., & Szczepaniak, A. P. (2015). Dispersive analysis of ω /ℙ →3π,πγ∗. Physical Review D - Particles, Fields, Gravitation and Cosmology, 91(9), [094029]. https://doi.org/10.1103/PhysRevD.91.094029