  The production of events with multiple high transverse momentum particles
including charged leptons and jets is measured, using 1.04 fb-1 of
proton-proton collision data recorded by the ATLAS detector during the first
half of 2011 at sqrt(s) = 7 TeV. No excess beyond Standard Model expectations
is observed, and upper limits on the fiducial cross sections for non-Standard
Model production of these final states are set. Using models for string ball
and black hole production and decay, exclusion contours are determined as a
function of mass threshold and the fundamental gravity scale.
