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Luminosity measurements for the R scan experiment at BESIII

Submit Time: 2017-11-10
Author: M. Ablikim[et al.] 1 ;
Institute: 1.BESIII Collaboration;


By analyzing the large-angle Bhabha scattering events e+e? → (γ)e+e and diphoton events e e → γγ for the data sets collected at center-of-mass (c.m.) energies between 2.2324 and 4.5900 GeV (131 energy points in total) with the upgraded Beijing Spectrometer (BESIII) at the Beijing Electron-Positron Collider (BEPCII), the integrated luminosities have been measured at the di?erent c.m. energies, individually. The results are the important inputs for R value and J/ψ resonance parameter measurements.
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Recommended references: M. Ablikim[et al.].(2017).Luminosity measurements for the R scan experiment at BESIII.[ChinaXiv:201711.02281] (Click&Copy)
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[V1] 2017-11-10 15:12:51 chinaXiv:201711.02281V1 Download
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