  An inclusive search for a new-physics signature of lepton-jet resonances has
been performed by the ATLAS experiment. Scalar leptoquarks, pair-produced in
$pp$ collisions at $\sqrt{s}$ = 13 TeV at the Large Hadron Collider, have been
considered. An integrated luminosity of 3.2 fb$^{-1}$, corresponding to the
full 2015 dataset was used. First (second) generation leptoquarks were sought
in events with two electrons (muons) and two or more jets. The observed event
yield in each channel is consistent with Standard Model background
expectations. The observed (expected) lower limits on the leptoquark mass at
95% confidence level are 1100 GeV and 1050 GeV (1160 GeV and 1040 GeV) for
first and second generation leptoquarks, respectively, assuming a branching
ratio into a charged lepton and a quark of 100%. Upper limits on the
aforementioned branching ratio are also given as a function of leptoquark mass.
Compared with the results of earlier ATLAS searches, the sensitivity is
increased for leptoquark masses above 860 GeV, and the observed exclusion
limits confirm and extend the published results.
