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Measurement of D0-D¯0 Mixing from a Time-Dependent Amplitude Analysis of D0→K+π-π0 Decays

Aubert, B. et al. (2009) Measurement of D0-D¯0 Mixing from a Time-Dependent Amplitude Analysis of D0→K+π-π0 Decays. Physical Review Letters, 103 (21). p. 211801. ISSN 0031-9007

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Abstract

We present evidence of D0-D̅ 0 mixing using a time-dependent amplitude analysis of the decay D0→K+π-π0 in a data sample of 384 fb-1 collected with the BABAR detector at the PEP-II e+e- collider at the Stanford Linear Accelerator Center. Assuming CP conservation, we measure the mixing parameters xKππ0′=[2.61-0.68+0.57(stat)±0.39(syst)]%, yKππ0′=[-0.06-0.64+0.55(stat)±0.34(syst)]%. This result is inconsistent with the no-mixing hypothesis with a significance of 3.2 standard deviations. We find no evidence of CP violation in mixing.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
Depositing User: Sharon Beastall
Date Deposited: 30 Mar 2011 11:13
Last Modified: 20 May 2011 17:01
URI: http://eprints.hud.ac.uk/id/eprint/9963

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