Observation of $e^\pm$ in the inelastic $e^+A$ interaction

Results of observation and analysis of $e^\pm$ appearing in the interaction of $32$-GeV positrons with nuclear emulsion have been reported. The angular distributions of particles have been measured in the range of $0^\circ$–$180^\circ$. The energy of particles has been measured in the angular range of $145^\circ$–$180^\circ$ and values of the Bjorken variable $x_{\text{B}}$ have been calculated. The distribution in $x_{\text{B}}$ corresponds to values smaller than unity at $Q^2 > 7.0$ (GeV/s)$^2$. This means that $e^\pm$ with energies lower than $250$ MeV cannot be attributed to multinucleon correlations.