Search for B+ to D+ K(*)0 decays with the BaBar experiment

TL;DR

This study searches for rare B+ meson decays to D+ and K(*)0 particles using BaBar data, setting upper limits on their branching fractions due to lack of significant evidence.

Contribution

First search for B+ to D+ K(*)0 decays with a large dataset, establishing upper limits on their branching fractions.

Findings

No significant evidence for the decays was found.

Upper limits on branching fractions were set at 2.9x10^-6 and 3.0x10^-6.

Approximately 465 million BBbar pairs were analyzed.

Abstract

We report a search for the rare decays B+ to D+ K0 and B+ to D+ K*0 in an event sample of approximately 465 million BBbar pairs collected with the BaBar detector at the PEP-II asymmetric-energy e+e- collider at SLAC. We find no significant evidence for either mode and we set 90% probability upper limits on the branching fractions of BF(B+ to D+ K0) < 2.9x 10^-6 and BF(B+ to D+ K*0) < 3.0 x 10^-6.