Recent Results From CLEO-c
| dc.creator | Smith, Alex | |
| dc.date | 2005-05-23 | |
| dc.date.accessioned | 2026-07-07T03:36:53Z | |
| dc.date.available | 2026-07-07T03:36:53Z | |
| dc.description | This paper describes recent preliminary results from the CLEO-c experiment using an initial ~60 pb^-1 sample of data collected in e^+e^- collisions at a center of mass energy around the mass of the psi(3770). A first measurement of the branching fraction BR(D^+ -> mu^+ nu) = (3.5 +/- 1.4 +/- 0.6)x 10^-4 and the corresponding decay constant f_D = (202 +/- 41 +/- 17) MeV has been made. Several charged and neutral D meson absolute exclusive semileptonic branching fractions have been measured, including first measurements of the branching fractions BR(D^0 -> rho^-e^+ nu) = (0.19 +/- 0.04 +/- 0.02)% and BR(D^+ -> omega e^+ nu) = (0.17 +/- 0.006 +/- 0.01)%. Estimated uncertainties for inclusive D semileptonic decay modes are also presented. Fits to single and double D tagged events are used to extract absolute branching fractions of several hadronic D decay modes and DDbar production cross sections. Most of these results from this small preliminary sample are already of greater sensitivity than previously published results. | |
| dc.description | Proceedings submission for Les Rencontres de Physique de la Vallee D'Aoste 9 pages, 10 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0505068 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0505068 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/37903 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Recent Results From CLEO-c | |
| dc.type | text |