Charm Mixing and Lifetimes at Babar
High Energy Physics - Experiment
2007-05-23 v1
Abstract
Preliminary limits on the D^0 mixing parameter y = \Delta \Gamma / 2 \Gamma are obtained using about 57.8 fb^-1 of data collected by BaBar in 2000 and 2001:y = (1.4 \pm 1.0 (stat.) +0.6 -0.7 (syst.))%. y is extracted, provided that CP is conserved, by measuring separately the D^0 lifetime for the Cabibbo-suppressed decay modes K- K+, \pi- \pi+ and the Cabibbo-favoured mode K- \pi+. Backgrounds are suppressed by D*-tag and particle identification requirements.
Cite
@article{arxiv.hep-ex/0205071,
title = {Charm Mixing and Lifetimes at Babar},
author = {Alexis Pompili},
journal= {arXiv preprint arXiv:hep-ex/0205071},
year = {2007}
}
Comments
5 pages, 2 figures; proceedings of the XXXVII Rencontres de Moriond on Electroweak Interactions and Unified Theories, Les Arcs, France, 9-16 March 2002