Study of the Process e+ e- ---> eta gamma in c.m. Energy Range 600-1380 MeV at CMD-2
Abstract
The cross section of the process e+ e- ---> eta gamma 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(rho ---> eta gamma) = (3.28 +- 0.37 +- 0.23) 10-4, B(omega ---> eta gamma) = (5.10 +- 0.72 +- 0.34) 10-4, B(phi --> eta gamma) = (1.287 +- 0.013 +- 0.063) 10-2. Evidence for the rho'(1450) ---> eta gamma decay has been obtained for the first time.
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