  Results from the Spherical Nonmagnetic Detector (SND) on $\Delta (1232)$
isobar electroproduction in the collisions of beam electrons (positrons) and
residual gas nuclei in the VEPP-2M $e^+e^-$ collider are presented. On the
basis of the obtained data the expected counting rate of this process in future
high luminosity $e^+e^-$ colliders (~$\phi$-, $c$-$\tau$- and $b$-factories)
was estimated.

High Energy Physics - Experiment