Study of $\bar{B^{0}} \to D^{(*)0} π^+ π^-$ Decays
| dc.creator | The Belle Collaboration | |
| dc.creator | Satpathy, A. | |
| dc.date | 2002-11-08 | |
| dc.date | 2002-12-17 | |
| dc.date.accessioned | 2026-07-07T12:01:52Z | |
| dc.date.available | 2026-07-07T12:01:52Z | |
| dc.description | We report on a study of $\bar{B^{0}} \to D^{(*) 0} π^+ π^-$ decays using 29.1 fb$^{-1}$ of $e^{+}e^{-}$ annihilation data recorded at the $Υ(4S)$ resonance with the Belle detector at the KEKB storage ring. Making no assumptions about the intermediate mechanism, the branching fractions for $\bar{B}^0 \to D^0 π^+ π^-$ and $\bar{B}^0 \to D^{* 0} π^+ π^-$ are determined to be $(8.0 \pm 0.6 \pm 1.5) \times 10^{-4} $ and $ (6.2 \pm 1.2 \pm 1.8) \times 10^{-4}$ respectively. An analysis of $\bar{B^{0}} \to D^{0} π^+ π^-$ candidates yields to the first observation of the color-suppressed hadronic decay $\bar{B}^0 \to D^0 ρ^0$ with the branching fraction $(2.9 \pm 1.0 \pm 0.4) \times 10^{-4}$. We measure the ratio of branching fractions ${\mathcal B}(\bar{B^0} \to D^0 ρ^0) / {\mathcal B}(\bar{B^0} \to D^0 ω)$ = 1.6 $\pm$ 0.8. | |
| dc.description | 13 pages, LaTex, 4 figures, submitted to Phys. Lett. B | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0211022 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0211022 | |
| dc.identifier | Phys.Lett.B553:159-166,2003 | |
| dc.identifier | doi:10.1016/S0370-2693(02)03198-2 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207244 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Study of $\bar{B^{0}} \to D^{(*)0} π^+ π^-$ Decays | |
| dc.type | text |