The $\phi(1020)\to\pi^0\pi^0\gamma$ decay

A.A.Drozdetsky; A.A.Korol; A.A.Mamutkin; A.A.Salnikov; A.A.Valishev; A.D.Bukin; A.N.Skrinsky; A.V.Berdyugin; A.V.Bozhenok; A.V.Vasiljev

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The φ(1020)toπ⁰π⁰γ decay

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arxiv hep-ex/0005017 v1 pith:FSDJWPOV submitted 2000-05-11 hep-ex

The φ(1020)toπ⁰π⁰γ decay

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

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

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keywords gammadecaybranchingcdot10colliderdominatesexperimentintermediate

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In the SND experiment at VEPP-2M $e^+e^-$ collider the $\phi(1020)\to\pi^0\pi^0\gamma$ decay was studied and its branching ratio was measured: $B(\phi\to\pi^0\pi^0\gamma)=(1.221\pm 0.098\pm0.061)\cdot10^{-4}$. It was shown, that $f_0(980)\gamma$ intermediate state dominates in this decay and the $f_0(980)$-meson parameters were obtained.

The φ(1020)toπ⁰π⁰γ decay

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