  We study the contribution from double parton scattering (DPS) to four-jet
production at the LHC, both at the leading order accuracy and after
incorporating the effects of QCD radiation. Apart from DPS, we also include and
discuss the contribution from single parton scattering (SPS). We find that the
QCD radiation impacts theoretical predictions significantly, with DPS
contributions more affected than the SPS. We also examine a number of
observables in regard to their effectiveness for discrimination between DPS and
SPS events and propose sets of kinematical cuts to improve the prospects of
measuring DPS in four-jet production.
