Experimental Input from $E^+e^-$ Machines to Hadronic Contribution to Muon (G-2)

M. N. Achasov,R. R. Akhmetshin,A. N. Amirkhanov,A. V. Anisenkov,V. M. Aulchenko,V. Sh. Banzarov,A. Yu. Barnyakov,N. S. Bashtovoy,K. I. Beloborodov,A. V. Berdyugin,D. E. Berkaev,A. G. Bogdanchikov,A. E. Bondar,A. A. Botov,A. V. Bragin,T. V. Dimova,V. P. Druzhinin,S. I. Eidelman,D. A. Epifanov,L. B. Epshteyn,A. L. Erofeev,G. V. Fedotovich,S. E. Gayazov,V. B. Golubev,A. A. Grebenuk,S. S. Gribanov,D. N. Grigoriev,F. V. Ignatov,V. L. Ivanov,L. V. Kardapoltsev,S. V. Karpov,V. F. Kazanin,A. G. Kharlamov,A. N. Kirpotin,I. A. Koop,A. A. Korol,A. A. Korobov,S. V. Koshuba,A. N. Kozyrev,E. A. Kozyrev, Dmitry Kovrizhin,P. P. Krokovny,A. S. Kupich,A. E. Kuzmenko,A. S. Kuzmin,R. A. Litvinov,I. B. Logashenko,P. A. Lukin,K. A. Martin,N. A. Melnikova,K. Yu. Mikhailov,A. E. Obrazovsky,V. S. Okhapkin,A. V. Otboev,E. V. Pakhtusova,Yu. N. Pestov,A. S. Popov,K. V. Pugachev,G. P. Razuvaev,A. A. Ruban,N. M. Ryskulov,A. E. Ryzhenenkov,A. I. Senchenko,Sergey Serednyakov,Yu. M. Shatunov,P. Yu. Shatunov,V. E. Shebalin,D. N. Shemyakin,D. A. Shtol, Boris Shwartz,D. B. Shwartz,A. L. Sibidanov,Z. K. Silagadze,E. P. Solodov,I. K. Surin,A. A. Talyshev,V. M. Titov,S. S. Tolmachev,A. I. Vorobiov,I. M. Zemlyansky,Yu. V. Yudin

SciPost Physics Proceedings（2019）

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摘要

Precise study of the hadrons production in \bm{e^+e^-}𝐞+𝐞− annihilation at low energies provides important information about interactions of light quarks and spectroscopy of their bound states. These studies are especially important for theoretical calculations of the muon \bm{(g-2)}(𝐠−2) via the Standard Model because of the present difference between theoretical and experimental values exceeds three standard deviations. In this report we will discuss current status and recent results obtained by the CMD-3 experiment and will give a brief look to status of the BaBar and Belle II experiments.

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