  We predict that long-range interactions give rise to anisotropy in the
electrical resistivity of Weyl metals at low temperatures, where the electrical
resistivity becomes much reduced when electric fields are applied to the
direction of the momentum vector to connect two paired Weyl points. Performing
the renormalization group analysis, we find that the distance between two Weyl
points becomes enhanced logarithmically at low temperatures although the
coupling constant of such interactions vanishes inverse-logarithmically.
Considering the Adler-Bell-Jackiw anomaly, scattering between these two Weyl
points becomes suppressed to increase electrical conductivity in the
"longitudinal" direction, counter-intuitive in the respect that interactions
are expected to reduce metallicity. We also propose that the anomalous
contribution in the Hall effect shows the logarithmic enhancement as a function
of temperature, originating from the fact that the anomalous Hall coefficient
turns out to be proportional to the distance between two paired Weyl points.
Correlations with topological constraints allow unexpected and exotic transport
properties.
