Speaker
Sergey Uzunyan
(Northern llinois University)
Description
We report on searches for the production of scalar and vector
leptoquarks in ppbar collisions at the Tevatron collider,
which are based on integrated luminosities of up to
2.5 fb-1 collected with the DO detector. Leptoquarks,
which are predicted by several extensions of the Standard
Model, are hypothetical particles carrying both lepton and
quark flavors. At hadron colliders they can either be
pair-produced via the strong interaction or a single leptoquark
can be produced in association with a lepton via the
hypothesized leptoquark-lepton-quark coupling.
Searches for the pair-production of leptoquarks of all
generations have been performed using several
final states. A search for the single production of leptoquarks
coupling to muons will also be presented.
Upper limits on the production cross sections are given and are
used to derive lower limits on the leptoquark masses as a function
of the branching fraction beta of the leptoquark in a charged
lepton and a quark and for different couplings.
Authors
Aurelio Juste
(Fermilab)
H Wahl
(Florida State University)
Stefan Soldner-Rembold
(University of Manchester)
