Mixing in the D0 - D0bar system at BaBar
File(s)
Published version
Author(s)
Egede, U
Type
Journal Article
Abstract
We report a preliminary result for D0-D0bar mixing and the doubly Cabibbo
suppressed decay rate R_D based on an analysis of D0 -> K+ pi- decays from 57.1
inverse fb of data collected at or just below the Y(4S) resonance with the
BaBar detector at the PEP-II collider. We set 95% confidence limits for the
mixing parameters x'^2 and y' and find that our result is compatible with no
mixing and no CP violation. In the limit of no mixing we find the doubly
Cabibbo suppressed decay rate R_D = (0.357 +- 0.022 (stat.) +- 0.027 (syst.))%
and the CP violating asymmetry A_D = 0.095 +- 0.061 (stat.) +- 0.083 (syst.).
suppressed decay rate R_D based on an analysis of D0 -> K+ pi- decays from 57.1
inverse fb of data collected at or just below the Y(4S) resonance with the
BaBar detector at the PEP-II collider. We set 95% confidence limits for the
mixing parameters x'^2 and y' and find that our result is compatible with no
mixing and no CP violation. In the limit of no mixing we find the doubly
Cabibbo suppressed decay rate R_D = (0.357 +- 0.022 (stat.) +- 0.027 (syst.))%
and the CP violating asymmetry A_D = 0.095 +- 0.061 (stat.) +- 0.083 (syst.).
Date Acceptance
2002-10-06
Citation
Frascati Phys.Ser., 31, pp.239-243
Start Page
239
End Page
243
Journal / Book Title
Frascati Phys.Ser.
Volume
31
Identifier
http://arxiv.org/abs/hep-ex/0210060v1
Subjects
hep-ex
hep-ex
Notes
5 pages, 2 postscript figues, contributed to the proceedings of the Frontier Science 2002 conference