Measurement of the Processes $e^+ e^- \to e^+ e^-$ and $e^+ e^- \to \gamma \gamma$ at {PETRA}

between 12.0 and 34.6 GeV. The results agree with the predictions of Quantum Electrodynamics (QED) and the cut-off parameters are determined. From Bhabha scattering at the highest energy,

\left\langle {\sqrt s } \right\rangle= 34.6 GeV

, the 1 δ limits 0.12

ELECTRON POSITRON: COLLIDING BEAMS
COLLIDING BEAMS: ELECTRON POSITRON
ELECTRON POSITRON: ELASTIC SCATTERING
ELASTIC SCATTERING: ELECTRON POSITRON
ELECTRON POSITRON: INELASTIC SCATTERING
INELASTIC SCATTERING: ELECTRON POSITRON
PHOTON: ELECTROPRODUCTION
ELECTROPRODUCTION: PHOTON
PHOTON: MULTIPLE PRODUCTION
MULTIPLE PRODUCTION: PHOTON

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Figures(0)

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Measurement of the Processes e+e−→e+e−e^+ e^- \to e^+ e^-e+e−→e+e− and e+e−→γγe^+ e^- \to \gamma \gammae+e−→γγ at {PETRA}

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Measurement of the Processes $e^+ e^- \to e^+ e^-$ and $e^+ e^- \to \gamma \gamma$ at {PETRA}