Violation of geometric scaling in DIS due to Coulomb corrections
  I compute the Coulomb correction to the total and diffractive cross sections for virtual photon scattering off a heavy nucleus at low $x$. I show that it violates the geometric scaling in a wide range of photon virtualities and is weakly $x$-independent. In heavy nuclei at low $Q^2$ the Coulomb correction to the total and diffractive cross sections is about 20% and 40% correspondingly. 
Kirill Tuchin
hep-ph nucl-th