At Run II of the Fermilab Tevatron, the CDF experiment provides
good sensitivity for either discovery or setting limits on 1st and 2nd
generation scalar, or 3rd generation vector, leptoquark pair-production,
where each leptoquark decays to a charged lepton and a quark with variable
branching ratio Beta, or decays to a neutrino and quark with branching ratio
(1-Beta). By comparison with the theoretical expectations, we set mass
limits, in some cases as a function of Beta. New quark generations are
predicted in various scenarios for physics beyond the Standard Model. Here
we include results from searches for t' and for b' production. the t' is
searched for in decays to Wq and the b' in decays to Z0 b. All of these
measurements are based on an integrated luminosity of 200-350 pb-1, taken
at s**(1/2) = 1.96 TeV.
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Updated: Thursday, 2006 March 09 11:53:03 CST automatically from input from Carol Picciolo