Abstract
At-channel factorization model is used to estimate cross sections for the processes γγ→V 1 V 2. WheneverV=ρ, the width of the ρ has been included in the calculations. The channels γγ→ρ0ρ0, ρ0ϕ, ϕϕ, ωω, ρ0ω and ρ+ρ− are calculated for two quasi-real photons. Predictions are also given for the process γ*γ→ρ0ρ0 for virtual photon mass squaredQ 2<5 GeV2. Our results are consistent with all available experimental data.
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Alexander, G., Levy, A. & Maor, U. t-channel factorization description of γγ→V 1 V 2 . Z. Phys. C - Particles and Fields 30, 65–68 (1986). https://doi.org/10.1007/BF01560678
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DOI: https://doi.org/10.1007/BF01560678