Energy Range 600-1380 Mev at Cmd-2

Abstract

The cross section of the process e+e− → ηγ has been measured in the 600-1380 MeV c.m. energy range with the CMD-2 detector. The following branching ratios have been determined: B(ρ → ηγ) = (3.28 ± 0.37 ± 0.23) · 10 , B(ω → ηγ) = (5.10 ± 0.72 ± 0.34) · 10 , B(φ → ηγ) = (1.287 ± 0.013 ± 0.063) · 10 . Evidence for the ρ(1450) → ηγ decay has been obtained for… (More)

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