An analysis of the rho, omega, phi ---> 2 pi + gamma decays with the help of current algebra
196922 pages
Published in:
- Nuovo Cim.A 62 (1969) 475-496
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Abstract: (Springer)
The decay modes ρ, ω, ϕ→2π+γ are studied in a gauge-invariant way with current algebra, the hard-pion and Ward-identities technique and meson dominance. A comparison with the π, A1, ρ and σ polology is done and the ω, ϕ, H, f0, A2 terms for the ρ decays and the ρ, B, f0 terms for the ω, ϕ decays are added as supplementary «contact terms». The angular distributions, photon spectra and decay rate are discussed in terms of coupling, constants (essentiallygωρπ,gϕρπ,gϱπγ) and of the σ term parameters (mass and couplings).- meson resonance: decay
- decay: meson resonance
- meson resonance: rho
- rho: meson resonance
- meson resonance: omega
- omega: meson resonance
- meson resonance: phi
- phi: meson resonance
- decay: radiative
- radiative: decay
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