Direct measurement of the absolute branching fraction for $D^+ \to {\bar K}^0μ^+ν_μ$ and determination of $ Γ(D^0 \to K^-μ^+ν_μ)/Γ(D^+ \to {\bar K}^0μ^+ν_μ)$
| dc.creator | Ablikim, M. | |
| dc.date | 2006-10-08 | |
| dc.date.accessioned | 2026-07-07T10:24:42Z | |
| dc.date.available | 2026-07-07T10:24:42Z | |
| dc.description | The absolute branching fraction for the decay $D^+ \to {\bar K}^0μ^+ν_μ$ is determined using $5321 \pm 149 \pm160$ singly tagged $D^-$ sample from the data collected around 3.773 GeV with the BESII detector at the BEPC collider. In the system recoiling against the singly tagged $D^-$ mesons, $28.7 \pm 6.4$ events for $D^+ \to {\bar K}^0μ^+ν_μ$ are observed. These yield the absolute branching fraction to be $BF(D^+ \to {\bar K}^0μ^+ν_μ) = (10.3\pm2.3\pm0.8)%$. The ratio of the two partial widths for the decays $D^0 \to K^-μ^+ν_μ$ and $D^+ \to {\bar K}^0μ^+ν_μ$ is determined to be $Γ(D^0 \to K^-μ^+ν_μ)/Γ(D^+ \to {\bar K}^0μ^+ν_μ) = 0.87 \pm 0.24 \pm 0.15$. | |
| dc.description | 6 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0610020 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0610020 | |
| dc.identifier | Phys.Lett.B644:20-24,2007 | |
| dc.identifier | doi:10.1016/j.physletb.2006.11.026 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/176279 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Direct measurement of the absolute branching fraction for $D^+ \to {\bar K}^0μ^+ν_μ$ and determination of $ Γ(D^0 \to K^-μ^+ν_μ)/Γ(D^+ \to {\bar K}^0μ^+ν_μ)$ | |
| dc.type | text |