ω→ 3π and ωπ⁰ transition form factor revisited

2020/06/01 by M. Albaladejo, I. Danilkin, Albaladejo, M. +21
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph

paper · pdf · doi:10.48550/arxiv.2006.01058

arxiv created 2020/06/01 · openalex publication_date 2020/06/01 · arxiv updated 2020/06/02 · openalex created_date 2020/06/05 · openalex updated_date 2026/08/01

Abstract

In light of recent experimental results, we revisit the dispersive analysis of the ω→ 3π decay amplitude and of the ωπ⁰ transition form factor. Within the framework of the Khuri-Treiman equations, we show that the ω→ 3π Dalitz-plot parameters obtained with a once-subtracted amplitude are in agreement with the latest experimental determination by BESIII. Furthermore, we show that at low energies the ωπ⁰ transition form factor obtained from our determination of the ω→ 3π amplitude is consistent with the data from MAMI and NA60 experiments.

Citations

• Observation of J/ψp resonances consistent with pentaquark states in Λ_b⁰→ J/ψK^-p decays

Related

• ϕ→ 3π and ϕπ⁰ transition form factor from Khuri-Treiman equations
• Testing the consistency of the ωπ transition form factor with unitarity and analyticity
• Dispersive analysis of omega/phi --> 3pi decays and the omega/phi --> pi0 gamma* transition form factors
• Form Factors for B→π and D→π Transitions
• Dispersive analysis of the J/ψ→π⁰ γ^∗ transition form factor with ρ-ω mixing effects