D+ to mu+nu and fD+ from 281 pb-1 at Psi(3770) from CLEO-c
| dc.creator | Gao, Yongsheng | |
| dc.date | 2005-12-20 | |
| dc.date.accessioned | 2026-07-07T06:54:02Z | |
| dc.date.available | 2026-07-07T06:54:02Z | |
| dc.description | We report improved measurements of branching fraction and decay constant fD+ in D+ to mu+nu using 281 pb-1 of data taken on the Psi(3770) resonance with the CLEO-c detector. We extract a relatively precise value for the decay constant of the D+ meson by measuring Br(D+ to mu+nu) = (4.40+-0.66+0.09-0.12)x10^-4 and find fD+ = (222.6+-16.7+2.8-3.4) MeV. We also set 90% confidence upper limit on Br(D+ to e+nu) < 2.4x10^-5 which limits contributions from non-Standard Model physics. | |
| dc.description | Proceeding for International Europhysics Conference on High Energy Physics (HEP2005), Lisboa, Portugal | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0512047 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0512047 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/105804 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | D+ to mu+nu and fD+ from 281 pb-1 at Psi(3770) from CLEO-c | |
| dc.type | text |