Measurement of the B -> Xs l+ l- branching fraction with a sum over exclusive modes

Details Measurement of the B -> Xs l+ l- branching fraction with a sum over exclusive modes Measurement of the B -> Xs l+ l- branching fraction with a sum over exclusive modes

2004-04-05

arxiv.org/abs/hep-ex/0404006v3

Phys.Rev.Lett.93:081802,2004

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, 2 postscript figures, new version as will appear in Phys.Rev.Lett., results are unchanged

Scientific paper

10.1103/PhysRevLett.93.081802

We measure the branching fraction for the flavor-changing neutral-current process B -> Xs l+ l- with a sample of 89 x 10^6 Upsilon(4S) -> BBbar events recorded with the BaBar detector at the PEP-II e+e- storage ring. The final state is reconstructed from e+e- or mu+mu- pairs and a hadronic system consisting of one K or K0s and up to two pions, with at most one pi0. We observe a signal of 40 +/- 10(stat) +/- 2(syst) events and extract the inclusive branching fraction B(B -> Xs l+ l-) = (5.6 +/- 1.5(stat) +/- 0.6(exp syst) +/- 1.1(model syst)) x 10^-6 for mll > 0.2 GeV/c^2.

Affiliated with

Also associated with

No associations

Rating

Measurement of the B -> Xs l+ l- branching fraction with a sum over exclusive modes 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 Measurement of the B -> Xs l+ l- branching fraction with a sum over exclusive modes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement of the B -> Xs l+ l- branching fraction with a sum over exclusive modes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-601012