D0-Anti-D0 Mixing Results From BaBar By Analysis of D0 ---> K+ Pi- Pi0 Dalitz-Plot Regions
We present a preliminary search for D{sup 0}-{bar D}{sup 0} mixing using the decays D{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0}, additionally presenting Dalitz-plot distributions and a measurement of the branching ratio for this mode. A new tagging technique is used to produce the doubly Cabibbo-suppressed Dalitz plot, which in turn is used to motivate the method used for the D-mixing search. We analyze 230.4 fb{sup -1} of data collected from the BABAR detector at the PEP-II collider. Assuming CP conservation, we find R{sub M} < 0.054% with 95% confidence, and we estimate that the data are consistent with no mixing at a 4.5% confidence level. We present D-mixing results both with and without the assumption of CP conservation.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 885521
- Report Number(s):
- SLAC-PUB-11939; hep-ex/0605046; TRN: US0604170
- Resource Relation:
- Conference: Presented at 4th Flavor Physics and CP Violation Conference (FPCP 2006), Vancouver, British Columbia, Canada, 9-12 Apr 2006
- Country of Publication:
- United States
- Language:
- English
Similar Records
D0 anti-D0 Mixing Results from BaBar with D0 -->K+ pi-pi0
Search for D0 - anti-D0 Mixing and Branching-Ratio Measurement in the Decay D0 to K+ pi- pi0