Measurement of the B -> Xs l+ l- branching fraction with a sum over exclusive modes
| dc.creator | The BABAR Collaboration | |
| dc.creator | Aubert, B. | |
| dc.date | 2004-04-05 | |
| dc.date | 2004-08-12 | |
| dc.date.accessioned | 2026-07-07T11:57:50Z | |
| dc.date.available | 2026-07-07T11:57:50Z | |
| dc.description | 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. | |
| dc.description | 7 pages, 2 postscript figures, new version as will appear in Phys.Rev.Lett., results are unchanged | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0404006 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0404006 | |
| dc.identifier | Phys.Rev.Lett.93:081802,2004 | |
| dc.identifier | doi:10.1103/PhysRevLett.93.081802 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206022 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurement of the B -> Xs l+ l- branching fraction with a sum over exclusive modes | |
| dc.type | text |