  We present measurements of 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 229 X 10^6 Y(4S) -> BBbar decays collected with the BaBar
detector at the PEP-II e+e- storage ring. We measure the branching fractions
BF(B -> Kl+l-) = (0.34 +- 0.07 +- 0.03) X 10^-6 and BF(B -> K*l+l-) =
(0.78^{+0.19}_{-0.17} +/- 0.12) X 10^-6, the direct CP asymmetries of these
decays, and the relative abundances of decays to electrons and muons.

High Energy Physics - Experiment