Abstract

We have measured the Compton electron spectrum coming from photons produced from the decays of ${\ensuremath{\pi}}^{0}$ mesons. The production rate agrees well with that predicted from the Klein-Nishina formula. The agreement, expressed as a ratio $R$ between the predicted and the measured numbers of Compton electrons, is as follows: For Compton-electron energies between 0.1 and 5.0 GeV, $R=1.03\ifmmode\pm\else\textpm\fi{}0.07$; for energies between 0.8 and 5.0 GeV, $R=0.95\ifmmode\pm\else\textpm\fi{}0.14$.

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