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arxiv: 0912.0749 · v1 · submitted 2009-12-03 · ✦ hep-ph · hep-ex

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Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data

S.Actis , A.Arbuzov , G.Balossini , P.Beltrame , C.Bignamini , R.Bonciani , C.M.Carloni Calame , V.Cherepanov
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M.Czakon H.Czyz A.Denig S.Eidelman G.V.Fedotovich A.Ferroglia J.Gluza A.Grzelinska M.Gunia A.Hafner F.Ignatov S.Jadach F.Jegerlehner A.Kalinowski W.Kluge A.Korchin J.H.Kuhn E.A.Kuraev P.Lukin P.Mastrolia G.Montagna S.E.Muller F.Nguyen O.Nicrosini D.Nomura G.Pakhlova G.Pancheri M.Passera A.Penin F.Piccinini W.Placzek T.Przedzinski E.Remiddi T.Riemann G.Rodrigo P.Roig O.Shekhovtsova C.P.Shen A.L.Sibidanov T.Teubner L.Trentadue G.Venanzoni J.J.van der Bij P.Wang B.F.L.Ward Z.Was M.Worek C.Z.Yuan
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classification ✦ hep-ph hep-ex
keywords crossenergyhadroniccarlodecaysexperimentalmeasurementsmonte
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We present the achievements of the last years of the experimental and theoretical groups working on hadronic cross section measurements at the low energy e+e- colliders in Beijing, Frascati, Ithaca, Novosibirsk, Stanford and Tsukuba and on tau decays. We sketch the prospects in these fields for the years to come. We emphasise the status and the precision of the Monte Carlo generators used to analyse the hadronic cross section measurements obtained as well with energy scans as with radiative return, to determine luminosities and tau decays. The radiative corrections fully or approximately implemented in the various codes and the contribution of the vacuum polarisation are discussed.

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  1. The anomalous magnetic moment of the muon in the Standard Model: an update

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