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Phys. Rev. Lett. 84, 594–597 (2000)

Measurement of the Total Cross Section for Hadronic Production by e+e- Annihilation at Energies between 2.6–5 GeV

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J. Z. Bai et al. (BES Collaboration)
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Received 28 July 1999; published in the issue dated 24 January 2000

Using the upgraded Beijing Spectrometer, we have measured the total cross section for e+e- annihilation into hadronic final states at center-of-mass energies of 2.6, 3.2, 3.4, 3.55, 4.6, and 5.0 GeV. Values of R, σ(e+e-→hadrons)/σ(e+e-μ+μ-), are determined.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.84.594
DOI:
10.1103/PhysRevLett.84.594
PACS:
12.20.Fv, 13.10.+q