Study of the $\rho$, $\omega$, $\phi\to\eta\gamma\to 7\gamma$ Decays with an SND Detector on a VEPP-2M Collider

A.A.Korol; A.A.Salnikov; A.G.Bogdanchikov; A.V.Berdyugin; A.V.Bozhenok; A.V.Vasiljev; D.A.Bukin; D.I.Ganyushin; E.V.Pakhtusova; G.A.Kukartsev

arxiv: hep-ex/0202032 · v2 · submitted 2002-02-14 · ✦ hep-ex

Study of the rho, ω, φtoηγto 7γ Decays with an SND Detector on a VEPP-2M Collider

M.N.Achasov , S.E.Baru , K.I.Beloborodov , A.V.Berdyugin , A.V.Bozhenok , A.G.Bogdanchikov , D.A.Bukin , S.V.Burdin

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A.V.Vasiljev Yu.S.Velikzhanin T.V.Dimova V.P.Druzhinin M.S.Dubrovin D.I.Ganyushin I.A.Gaponenko V.B.Golubev V.N.Ivanchenko I.A.Koop A.A.Korol S.V.Koshuba G.A.Kukartsev E.V.Pakhtusova A.A.Salnikov S.I.Serednyakov V.V.Shary Yu.M.Shatunov V.A.Sidorov Z.K.Silagadze

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classification ✦ hep-ex

keywords gammacdotcolliderdetectoromegavepp-2mbranchingdecay

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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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Study of the rho, ω, φtoηγto 7γ Decays with an SND Detector on a VEPP-2M Collider

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