Study of the $ρ$, $ω$, $φ\toηγ\to 7γ$ Decays with an SND Detector on a VEPP-2M Collider

Details Study of the $ρ$, $ω$, $φ\toηγ\to 7γ$ Decays with an SND Detector on a VEPP-2M Collider Study of the $ρ$, $ω$, $φ\toηγ\to 7γ$ Decays with an SND Detector on a VEPP-2M Collider

2002-02-14

arxiv.org/abs/hep-ex/0202032v2

JETPLett.72:282-285,2000; PismaZh.Eksp.Teor.Fiz.72:411-415,2000

Physics

High Energy Physics

High Energy Physics - Experiment

5 pages, 4 figures

Scientific paper

10.1134/1.1328437

The $e^+e^-\to\eta\gamma\to 7\gamma$ process was studied in the energy range
$2E=600\div 1060$ MeV with an SND detector on a VEPP-2M $e^+e^-$ collider. The
decay branching ratios $B(\phi\to\eta\gamma)=(1.343\pm 0.012\pm 0.055)\cdot
10^{-2}$, $B(\omega\to\eta\gamma)=(4.60\pm 0.72\pm 0.19)\cdot 10^{-4}$, and
$B(\rho\to\eta\gamma)=(2.69\pm 0.32\pm 0.16)\cdot 10^{-4}$ were measured.

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