Precision Measurement of CP Violation in $D^0\to\pi^+\pi^-$ at CDF Page: 1 of 6
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Precision Measurement of CP Violation in
D0 -*wc- at CDFAngelo Di Canto *t
INFN & University of Pisa, Fermilab
E-mail: angelo. dicanto@pi. infn. it
We report a preliminary measurement of the CP violating asymmetry in Do -> i+7- using ap-
proximately 215'000 decays reconstructed in about 5.94 fb- of CDF data. We use the strong
D*+ - DOr+ decay ("D* tag") to identify the flavor of the charmed meson at production time
and exploit CP-conserving strong cc pair-production in pp collisions. Higher statistic samples of
Cabibbo-favored Do -> K- -+ decays with and without D* tag are used to highly suppress sys-
tematic uncertainties due to detector effects. The result is the world's most precise measurement
to date.
The Xth Nicola Cabibbo International Conference on Heavy Quarks and Leptons,
October 11-15, 2010
Frascati (Rome) Italy
*Speaker on behalf of the CDF Collaboration.
tI would like to thank the HQL 2010 organizers for the opportunity of speak at this conference and the colleagues
of the CDF Collaboration for assisting me while preparing the talk and this document.@ Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence
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Di Canto, Angelo. Precision Measurement of CP Violation in $D^0\to\pi^+\pi^-$ at CDF, article, November 1, 2010; Batavia, Illinois. (https://digital.library.unt.edu/ark:/67531/metadc1014923/m1/1/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.