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We report the results of a search for the Theta*++ pentaquark in the decay B+ ->
Theta*++ pbar where Theta*++ -> pK+ using 81fb^-1 of data collected on the
Upsilon(4S) resonance with the BaBar detector at PEP-II. We find an upper limit on
the branching fraction of B+ -> Theta*++ pbar where Theta*++ -> pK+ to be 1.5x10^-7
for 1.43
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