New experimental data for the decays $\phi\to\mu^+\mu^-$ and $\phi\to\pi^+\pi^-$ from SND detector

A.A.Drozdetsky; A.A.Korol; A.A.Salnikov; A.S.Zakharov; A.V.Berdyugin; A.V.Bozhenok; A.V.Otboev; A.V.Vasiljev; D.A.Bukin; E.V.Pakhtusova

arxiv: hep-ex/9910070 · v2 · submitted 1999-11-01 · ✦ hep-ex

New experimental data for the decays φtoμ^+μ^- and φtoπ^+π^- from SND detector

M.N.Achasov , V.M.Aulchenko , K.I.Beloborodov , A.V.Berdyugin , A.V.Bozhenok , D.A.Bukin , S.V.Burdin , T.V.Dimova

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S.I.Dolinsky A.A.Drozdetsky V.P.Druzhinin M.S.Dubrovin I.A.Gaponenko V.B.Golubev V.N.Ivanchenko P.M.Ivanov A.A.Korol S.V.Koshuba G.A.Kukartsev I.N.Nesterenko A.V.Otboev E.V.Pakhtusova V.M.Popov A.A.Salnikov S.I.Serednyakov V.V.Shary Yu.M.Shatunov V.A.Sidorov Z.K.Silagadze Yu.V.Usov A.V.Vasiljev A.S.Zakharov

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The processes $e^+e^-\to\mu^+\mu^-$ and $e^+e^-\to\pi^+\pi^-$ have been studied with SND detector at VEPP-2M $e^+e^-$ collider in the vicinity of $\phi(1020)$ resonance. The branching ratios $B(\phi\to\mu^+\mu^-)=(3.30\pm 0.45\pm 0.32)\times 10^{-4}$ and $B(\phi\to\pi^+\pi^-)=(0.71\pm 0.11\pm 0.09)\times 10^{-4}$ were obtained.

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New experimental data for the decays φtoμ^+μ^- and φtoπ^+π^- from SND detector

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