Search for the Rare Decays B --> Kl^+l^- and B --> K^*l^+l^-

Details Search for the Rare Decays B --> Kl^+l^- and B --> K^*l^+l^- Search for the Rare Decays B --> Kl^+l^- and B --> K^*l^+l^-

2002-01-04

arxiv.org/abs/hep-ex/0201008v1

Phys.Rev.Lett.88:241801,2002

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, 3 figures, submitted to Physical Review Letters

Scientific paper

10.1103/PhysRevLett.88.241801

We present results from a search for the flavor-changing neutral current decays $B\to K\ell^+\ell^-$ and $B\to K^*\ell^+\ell^-$, where $\ell^+\ell^-$ is either an $e^+e^-$ or $\mu^+\mu^-$ pair. The data sample comprises $22.7\times 10^6$ $\Upsilon(4S)\to B\bar B$ decays collected with the BABAR detector at the PEP-II $B$ Factory. We obtain the 90% C.L. upper limits ${\mathcal B}(B\to K\ell^+\ell^-)< 0.50\times 10^{-6}$ and ${\mathcal B}(B\to K^*\ell^+\ell^-)<2.9\times 10^{-6}$, close to Standard Model predictions for these branching fractions. We have also obtained limits on the lepton-family-violating decays $B\to Ke^{\pm}\mu^{\mp}$ and $B\to K^{*}e^{\pm}\mu^{\mp}$.

Affiliated with

Also associated with

No associations

Rating

Search for the Rare Decays B --> Kl^+l^- and B --> K^*l^+l^- does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Search for the Rare Decays B --> Kl^+l^- and B --> K^*l^+l^-, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Search for the Rare Decays B --> Kl^+l^- and B --> K^*l^+l^- will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-503484