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arXiv · hep-ex/0010018

Observation of the phi to eta' gamma decay with four charged particles and photons in the final state

2 Collaboration
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Abstract

Using 11.6 1/pb of data collected in the energy range 0.864-1.06 GeV by CMD-2 at VEPP-2M, the rare decay mode phi to eta' gamma was observed via the decay chain eta' to pi+pi- eta, eta to pi+pi-pi0 or eta to pi+pi- gamma. The following branching ratio was obtained: Br(phi to eta' gamma) = (4.9^{+2.2}_{-1.8} +- 0.6) \cdot 10^{-5}.

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2 Collaboration. 2000-10-09. Observation of the phi to eta' gamma decay with four charged particles and photons in the final state. https://doi.org/10.1016/s0370-2693(00)01188-6

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