Validity of quantum electrodynamics at extremely small distances

1968
3 pages
Published in:
  • Phys.Rev.Lett. 21 (1968) 1501-1503
Report number:
  • DESY-68-55

Citations per year

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Abstract: (APS)
We have measured the yield of electron-positron pairs from the reaction γ+C→e++e−+C as a test of the validity of quantum electrodynamics at very small distances. Our results show that first-order quantum electrodynamics correctly predicts the e+e− pair yield up to an invariant pair mass of 900 MeV/c2.
  • quantum electrodynamics
  • photon-carbon: interaction
  • interaction: photon-carbon
  • final state
  • positron: electron: carbon
  • electron-positron: pair production
  • pair production: electron-positron
  • counters and detectors: experimental results