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

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: 1	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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