{ "id": "hep-ex/0404006", "version": "v3", "published": "2004-04-05T21:36:31.000Z", "updated": "2004-08-12T15:20:59.000Z", "title": "Measurement of the B -> Xs l+ l- branching fraction with a sum over exclusive modes", "authors": [ "The BABAR Collaboration", "B. Aubert" ], "comment": "7 pages, 2 postscript figures, new version as will appear in Phys.Rev.Lett., results are unchanged", "journal": "Phys.Rev.Lett.93:081802,2004", "doi": "10.1103/PhysRevLett.93.081802", "categories": [ "hep-ex" ], "abstract": "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.", "revisions": [ { "version": "v3", "updated": "2004-08-12T15:20:59.000Z" } ], "analyses": { "subjects": [ "13.20.He", "11.30.Er", "12.15.Ji" ], "keywords": [ "branching fraction", "exclusive modes", "measurement", "model syst", "babar detector" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable", "inspire": 647705 } } }