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Measurements of the Cross Section for e+e- -> hadrons at Center-of-Mass Energies from 2 to 5 GeV

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arxiv hep-ex/0102003 v3 pith:IJN5RQXG submitted 2001-02-04 hep-ex

Measurements of the Cross Section for e+e- -> hadrons at Center-of-Mass Energies from 2 to 5 GeV

classification hep-ex
keywords beijingcenter-of-massenergieshadronssigmacollidercrosselectron-positron
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We report values of $R = \sigma(e^+e^-\to {hadrons})/\sigma(e^+e^-\to\mu^+\mu^-)$ for 85 center-of-mass energies between 2 and 5 GeV measured with the upgraded Beijing Spectrometer at the Beijing Electron-Positron Collider.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Measurement of Born cross sections for $e^+e^-\to p\bar p$ at $\sqrt{s} =3.510-4.946$ GeV

    hep-ex 2026-06 unverdicted novelty 7.0

    BESIII reports Born cross sections for e+e- to p pbar at 47 energies between 3.51 and 4.95 GeV and determines |GE/GM| and |GM| for the first time from angular distributions at large timelike momentum transfer.

  2. Vector charmonium(-like) states in the energy range of 4.1-4.6 GeV

    hep-ph 2026-06 unverdicted novelty 5.0

    A coupled-channel framework is developed and fitted to BESIII data on vector charmonium-like states in the 4.1-4.6 GeV range, concluding that coupled-channel effects with dynamically generated poles explain the line shapes.

  3. The anomalous magnetic moment of the muon in the Standard Model

    hep-ph 2020-06 accept novelty 2.0

    The Standard Model value for the muon anomalous magnetic moment is 116591810(43)×10^{-11}, 3.7σ below the Brookhaven experimental measurement.