Search for flavor-changing neutral current B meson decays in pp-bar collisions at sqrt s=1.8 TeV.
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We report on a search for the flavor-changing neutral current decays B0d, s+, B++K+, and B0+K*0 using data from pp- collisions at s = 1.8 TeV, collected with the Collider Detector at Fermilab during the 1992-1993 running period. We find no indication of such decays, and we set the following 90% confidence level upper limits on branching ratios: B(B0+)<1.6106, B(B0s+)<8.4106, B(B++K+)<1.0105, and B(B0+K*0)<2.5105. 1996 The American Physical Society.