Measurement of the Pion Form Factor with CMD-3 Detector and Its Implication to the Hadronic Contribution to Muon (g-2).

F V Ignatov,F V Ignatov,I B Logashenko,V L Ivanov,P Yu Shatunov,A V Anisenkov,S S Gribanov,V S Okhapkin,D N Grigoriev,V M Aulchenko,A N Kozyrev,A L Erofeev,A S Kuzmin,S S Tolmachev,A E Kuzmenko,A V Semenov,G P Razuvaev,A V Semenov,V L Ivanov,I A Koop,D A Epifanov,A I Senchenko,E A Kozyrev,A E Bondar,D N Grigoriev,A N Kozyrev,A V Bragin,P A Lukin,K Yu Mikhailov,V F Kazanin,P P Krokovny,V M Aulchenko,R R Akhmetshin,I A Koop,I B Logashenko,I V Obraztsov,Yu V Yudin,B A Shwartz,G V Fedotovich,A L Sibidanov,S I Eidelman,V E Shebalin,F J Grancagnolo,Yu M Zharinov,A A Korobov,Yu M Shatunov,S S Gribanov,D N Shemyakin,L B Epshteyn,Yu N Pestov,D N Grigoriev,N S Bashtovoy,A S Kasaev,A S Popov,I V Obraztsov,A O Gorkovenko,V M Titov,P A Lukin,V E Shebalin,N M Ryskulov,D N Shemyakin,A E Bondar,Yu A Rogovsky,L B Epshteyn,A A Grebenuk,S I Eidelman,D B Shwartz,E P Solodov,A A Ruban,D S Zhadan,A N Kozyrev,A N Amirkhanov,A E Ryzhenenkov,Cmd-3 Collaboration ,D E Berkaev,E A Perevedentsev,A O Gorkovenko,A I Vorobiov,R R Akhmetshin,L B Epshteyn,A N Kirpotin,Yu A Rogovsky,G V Fedotovich,A V Anisenkov,E P Solodov,V F Kazanin,K Yu Mikhailov,A S Popov,Yu V Yudin,D B Shwartz,A S Kuzmin,D E Berkaev,S S Tolmachev,S V Karpov,M V Timoshenko,A V Otboev,G P Razuvaev,A A Talyshev,P P Krokovny,A N Amirkhanov,B A Shwartz,E A Kozyrev,A P Lysenko,E A Perevedentsev,A A Talyshev,D A Epifanov,A L Erofeev,A S Zubakin,A A Korobov,I M Zemlyansky,A E Ryzhenenkov,A A Grebenuk,B I Khazin

doi:10.1103/physrevlett.132.231903

Measurement of the Pion Form Factor with CMD-3 Detector and Its Implication to the Hadronic Contribution to Muon (g-2).

F V Ignatov, F V Ignatov + Show 111 more

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https://doi.org/10.1103/physrevlett.132.231903

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Journal: Physical review letters	Publication Date: Jun 4, 2024
Citations: 10	License type: CC BY 4.0

#CMD-3 Detector #Electron-positron Collider VEPP-2000 + Show 8 more

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Abstract

The cross section of the process e^{+}e^{-}→π^{+}π^{-} has been measured in the center-of-mass energy range from 0.32 to 1.2GeV with the CMD-3 detector at the electron-positron collider VEPP-2000. The measurement is based on an integrated luminosity of about 88 pb^{-1}, of which 62 pb^{-1} represent a complete dataset collected by CMD-3 at center-of-mass energies below 1GeV. In the dominant region near the ρ resonance a systematic uncertainty of 0.7% was achieved. The implications of the presented results for the evaluation of the hadronic contribution to the anomalous magnetic moment of the muon are discussed.

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