Search for the rare decays B -> Kl(+)l(-) and B -> K*l(+)l(-) RID A-8798-2012 RID C-2728-2008 RID C-5223-2009 RID C-5719-2008 RID A-8865-2012 RID D-1189-2011 RID A-2675-2009

We present results from a search for the flavor-changing neutral current decays B --> Kl(+)l(-) and B --> K*l(+)l(-), where l(+)l(-) is either an e(+)e(-) or mu(+)mu(-) pair. The data sample comprises 22.7 x 10(6) Y (4S) --> BB decays collected with the BABAR detector at the PEP-II B Factory. We obtain the 90% C. L. upper limits B (B --> Kl(+)l(-)) <0.51 x 10(-6) and B (B --> K*l(+)l(-)) <3.1 x 10(-6), close to standard model predictions for these branching fractions. We have also obtained limits on the lepton-family-violating decays B --> Ke(+/-) mu(-/+) and B --> K* e(+/-) mu(-/+).

We present results from a search for the flavor-changing neutral current decays [Formula presented] and [Formula presented], where [Formula presented] is either an [Formula presented] or [Formula presented] pair. The data sample comprises [Formula presented] decays collected with the BABAR detector at the PEP-II B Factory. We obtain the [Formula presented] C.L. upper limits [Formula presented] and [Formula presented], close to standard model predictions for these branching fractions. We have also obtained limits on the lepton-family-violating decays [Formula presented] and [Formula presented]. © 2002 The American Physical Society.