Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2004-08-16
Phys.Rev.D70:091102,2004
Physics
High Energy Physics
High Energy Physics - Experiment
submitted to Phys. Rev. D (Rapid Communications)
Scientific paper
10.1103/PhysRevD.70.091102
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 $D^{*+} \to \pi^{+} D^{0}, D^{0} \to K^{(*)}e\nu$ (+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 ($\Delta M$) distributions. The high-statistics sample of unmixed semileptonic $D^{0}$ decays is used to model the $\Delta M$ 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).
Aubert B.
BABAR Collaboration
No associations
LandOfFree
Search for D0-D0bar Mixing Using Semileptonic Decay Modes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Search for D0-D0bar Mixing Using Semileptonic Decay Modes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Search for D0-D0bar Mixing Using Semileptonic Decay Modes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-579806