Search for CP violation in the decay D±→KS0π± [D superscript + - → K superscript 0 subscript X pi superscript + -]
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Sanchez-2011-Search for CP violat.pdf
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Author(s)
Dujmic, Denis
Sciolla, Gabriella
Cowan, Ray F
Zhao, M.
Date Issued
April 2011
Journal
Physical review D
Publisher
American Physical Society
Citation
Sanchez, P. del Amo et al. (BABAR Collaboration) "Search for CP violation in the decay D±→KS0π±" Phys. Rev. D 83, 071103(R) (2011) © 2011 American Physical Society
Version
Final published version
Abstract
We report on a search for CP violation in the decay D±→KS0π± [D superscript + - → K superscript 0 subscript X pi superscript + -] using a data set corresponding to an integrated luminosity of 469 fb-1 [fb superscript -1] collected with the BABAR detector at the PEP-II asymmetric energy e+e- [e superscript + e uperscript -] storage rings. The CP-violating decay rate asymmetry ACP is determined to be (-0.44±0.13(stat)±0.10(syst))%, consistent with zero at 2.7σ [2.7 sigma] and with the standard model prediction of (-0.332±0.006)%. This is currently the most precise measurement of this parameter.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.83.071103
