{ "id": "hep-ex/0008056", "version": "v1", "published": "2000-08-23T23:27:07.000Z", "updated": "2000-08-23T23:27:07.000Z", "title": "Study of inclusive D_S^((*)+/-) production in B decays and measurement of B^0 --> D^(*-)D_S^((*)+) decays using a partial reconstruction technique", "authors": [ "The BABAR Collaboration", "B. Aubert" ], "comment": "21 pages, 13 postscript figures, contributed paper to ICHEP2000", "categories": [ "hep-ex" ], "abstract": "Electron-positron annihilation data collected by the BABAR detector near the Y(4S) resonance are used to study the inclusive decay of B mesons to D_S^(+/-) and D_S^(*+/-) mesons, where the D_S^(+/-) is reconstructed using the decay D_S^(+/-) --> phi pi^(+/-). The production fraction of inclusive D_S^((*)+/-) and the corresponding momentum spectra have been determined. The exclusive decays B^0 --> D^(*-)D_S^((*)+) are observed with a partial reconstruction technique which uses the soft pion from the D^(*+/-) decay in association with the reconstructed D_S^((*)+/-). The beam energy constraint is used to determine the missing mass recoiling against the D_S^(+/-) system, showing a clear signal for this process. From the observed rates, preliminary results for the corresponding branching fractions have been obtained.", "revisions": [ { "version": "v1", "updated": "2000-08-23T23:27:07.000Z" } ], "analyses": { "keywords": [ "partial reconstruction technique", "measurement", "beam energy constraint", "babar detector", "production fraction" ], "note": { "typesetting": "TeX", "pages": 21, "language": "en", "license": "arXiv", "status": "editable", "inspire": 532397, "adsabs": "2000hep.ex....8056T" } } }