Measurement of the $B^0\to D^{\ast-} D_s^{\ast+}$ and $D_s^+\toϕπ^+$ Branching Fractions
| dc.creator | Aubert, B. | |
| dc.date | 2005-02-24 | |
| dc.date.accessioned | 2026-07-07T11:58:03Z | |
| dc.date.available | 2026-07-07T11:58:03Z | |
| dc.description | We present measurements of the branching fractions $\BR(B^0\to D^{\ast-} D_s^{\ast+})$ and $\BR(D_s^+\toϕπ^+)$, based on $123\times10^6$ Y(4S)->BBbar decays collected by the BaBar detector at the PEP-II asymmetric-energy $e^+e^-$ B factory. A partial reconstruction technique is used to measure $\BR(B^0\to D^{\ast-} D_s^{\ast+})$ and the decay chain is fully reconstructed to measure the branching fraction product $\BR(B^0\to D^{\ast-} D_s^{\ast+})\times\BR(D_s^+\toϕπ^+)$. Comparing these two measurements provides a model-independent determination of the \Dsphipi\ branching fraction. We obtain $\BR(B^0\to D^{\ast-} D_s^{\ast+}) = (1.88 \pm 0.09 \pm 0.17)%$ and $\BR(D_s^+\toϕπ^+) = (4.81 \pm 0.52 \pm 0.38)%$, where the first uncertainties are statistical and the second systematic. | |
| dc.description | 7 pages, 2 figures; being submitted to Phys. Rev. Lett | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0502041 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0502041 | |
| dc.identifier | Phys.Rev.D71:091104,2005 | |
| dc.identifier | doi:10.1103/PhysRevD.71.091104 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206095 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurement of the $B^0\to D^{\ast-} D_s^{\ast+}$ and $D_s^+\toϕπ^+$ Branching Fractions | |
| dc.type | text |