Lepto-Quarks at ATLAS and CMS

The results of a search for the production of first, second and third
generation scalar leptoquarks are presented.  Searches for the first
two generations are presented by the ATLAS experiment for final states
consisting of either two oppositely charged leptons and at least two
jets or a charged lepton plus missing transverse momentum and at least
two jets. The event yields in the signal regions are found to be
consistent with the Standard Model background expectations. The
production of first and second generation leptoquarks is excluded for
leptoquark masses mLQ<660 (607) GeV and mLQ < 685 (594) GeV at 95%
confidence level, respectively, for a branching ratio of 1.0 (0.5) for
leptoquark decay to a charged lepton and a quark.  A search for the
third generation leptoquark is presented by the CMS experiment for
final states containing two b-jets and large missing transverse
momentum using the Razor technique with 1.8/fb of data at 7 TeV.
Expectations from standard model background realso consistent with
observed data.  As there is no significant excess, a limit is set on 3rd
generation leptoquark to exclude up to 350 GeV at 95% C.L. assuming
branching ratio of 1.0 to b-jet and neutrino.  The limit as a function of
branching ratio is also provided.