High-statistics measurement of the pion form factor in the rho-meson energy range with the CMD-2 detector

The CMD-2 Collaboration: R.R.Akhmetshin , V.M.Aulchenko , V.Sh.Banzarov , L.M.Barkov , N.S.Bashtovoy , A.E.Bondar , D.V.Bondarev , A.V.Bragin

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S.K.Dhawan S.I.Eidelman D.A.Epifanov G.V.Fedotovich N.I.Gabyshev D.A.Gorbachev A.A.Grebenuk D.N.Grigoriev V.W.Hughes F.V.Ignatov S.V.Karpov V.F.Kazanin B.I.Khazin I.A.Koop P.P.Krokovny A.S.Kuzmin I.B.Logashenko P.A.Lukin A.P.Lysenko K.Yu.Mikhailov J.P.Miller A.I.Milshtein I.N.Nesterenko M.A.Nikulin V.S.Okhapkin A.V.Otboev E.A.Perevedentsev A.S.Popov S.I.Redin B.L.Roberts N.I.Root A.A.Ruban N.M.Ryskulov A.G.Shamov Yu.M.Shatunov B.A.Shwartz A.L.Sibidanov V.A.Sidorov A.N.Skrinsky V.P.Smakhtin I.G.Snopkov E.P.Solodov J.A.Thompson Yu.V.Yudin A.S.Zaitsev S.G.Zverev

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classification ✦ hep-ex

keywords measurementcmd-2datadetectorenergyfactorformpion

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We present a measurement of the pion form factor based on e+e- annihilation data from the CMD-2 detector in the energy range 0.6<sqrt(s)<1.0 GeV with a systematic uncertainty of 0.8%. A data sample is five times larger than that used in our previous measurement.

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