FOCUS Document 735-v1

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Search for CP violation in D0 and D+ decays

Document #:
FOCUS-doc-735-v1
Document type:
Publication
Submitted by:
Jonathan A. Pellish
Updated by:
Jonathan A. Pellish
Document Created:
25 May 2000, 00:00
Contents Revised:
25 May 2000, 00:00
Metadata Revised:
19 Oct 2000, 11:15
Actually Revised:
25 Aug 2005, 11:16
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Abstract:
A high statistics sample of photoproduced charm particles from the FOCUS (E831) experiment at Fermilab has been used to search for CP violation in the Cabibbo suppressed decay modes D+ to K-K+pi+, D0 to K-K+ and D0 to pi-pi+. We have measured the following CP asymmetry parameters: A_CP(K-K+pi+) = +0.006 +/- 0.011 +/- 0.005, A_CP(K-K+) = -0.001 +/- 0.022 +/- 0.015 and A_CP(pi-pi+) = +0.048 +/- 0.039 +/- 0.025 where the first error is statistical and the second error is systematic. These asymmetries are consistent with zero with smaller errors than previous measurements.
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Journal References:
Published in Phys. Lett. B vol. 491 pg. 232.
Published in hep-ex/0005037.
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