Search for B+ to D+K0 and B+ to D+K*0 Decays

We report a search for the rate decays B{sup +}{yields}D{sup +}K{sup 0} and B{sup +}{yields}D{sup +}K{sup asterisk}{sup 0} in an event sample of approximately 465 million BB pairs collected with the BABAR detector at the PEP-II asymmetric energy e{sup +}e{sup -} collider at SLAC. We find no significant evidence for either mode and we set 90% probability upper limits on the branching fractions of {ss} (B{sup +}{yields}D{sup +}K{sup 0}) <2.9 X 10{sup -6} and {ss}(B{sup +} {yields} D{sup +}K{sup asterisk}{sup 0}) <3.0 X 10{sup -6} .