Search for D0-D0bar Mixing Using Semileptonic Decay Modes
| dc.creator | Aubert, B. | |
| dc.creator | Collaboration, BABAR | |
| dc.date | 2004-08-16 | |
| dc.date.accessioned | 2026-07-07T11:57:55Z | |
| dc.date.available | 2026-07-07T11:57:55Z | |
| dc.description | Based on an 87-fb$^{-1}$ dataset collected by the Babar detector at the PEP-II asymmetric-energy $B$-Factory, a search for $D^{0}$--$\bar{D}^{0}$ mixing has been made using the semileptonic decay modes $D^{*+} \to π^{+} D^{0}, D^{0} \to K^{(*)}eν$ (+c.c.). The use of these modes allows unambiguous flavor tagging and a combined fit of the $D^{0}$ decay time and $D^{*+}$--$D^{0}$ mass difference ($ΔM$) distributions. The high-statistics sample of unmixed semileptonic $D^{0}$ decays is used to model the $ΔM$ distribution and time-dependence of mixed events directly from the data. Neural networks are used to select events and reconstruct the $D^{0}$. A result consistent with no charm mixing has been obtained, $R_{\rm{mix}}=0.0023 \pm 0.0012 \pm 0.0004$. This corresponds to an upper limit of $R_{\rm{mix}}<0.0042$ (90% CL). | |
| dc.description | submitted to Phys. Rev. D (Rapid Communications) | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0408066 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0408066 | |
| dc.identifier | Phys.Rev.D70:091102,2004 | |
| dc.identifier | doi:10.1103/PhysRevD.70.091102 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206048 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Search for D0-D0bar Mixing Using Semileptonic Decay Modes | |
| dc.type | text |