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

1999/08/11 by J. Z. Bai, J.Z. Bai, Y. Ban +97 · 149 citations
Physics and Astronomy · #Annihilation #Cross section (physics) #Hadron #High-Energy Particle Collisions Research #Nuclear physics #Optics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Spectrometer #hep-ex

paper · pdf · doi:10.1103/physrevlett.84.594

published in Physical Review Letters 84(4), 594-597 (American Physical Society) · Submitted to Phys. Rev. Lett

arxiv created 1999/08/11 · openalex publication_date 2000/01/24 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Using the upgraded Beijing Spectrometer, we have measured the total cross section for e⁺e^\ensuremath- 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, \ensuremathσ(e⁺e^\ensuremath-\ensuremath→hadrons)/\ensuremathσ(e⁺e^\ensuremath-\ensuremath→\ensuremathμ⁺\ensuremathμ^\ensuremath-), are determined.

Citations

• Reevaluation of the hadronic contribution to α(MZ2)
• Improved determination of α(MZ2) and the anomalous magnetic moment of the muon

Cited by

• τ mass and R value measurements at BES