  We calculate cross sections for mixed stop-sbottom pair production at the
LHC, analogous to single-top production, a weak process involving the
W-t(i)-b(j) vertex. While coupling-suppressed relative to QCD same-flavor
squark pair production, the signal is distinctive due to heavy-flavor tagging
along with a possible same-sign lepton pair in the final state. SUSY
backgrounds can often be suppressed many orders of magnitude by taking
advantage of distinct kinematic differences from the signal. Measuring the rate
of this process would add significant additional information to that gathered
from other SUSY processes. If the stop and sbottom mixings can be determined
elsewhere, stop-sbottom production would provide for a measurement of the weak
squark gauge coupling and super-CKM vertex factor.
