Journal
PHYSICS LETTERS B
Volume 670, Issue 3, Pages 190-195Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2008.10.052
Keywords
Charm mesons; CP violation; Cabibbo suppressed decays
Funding
- MEXT
- JSPS (Japan):
- ARC
- DEST (Australia)
- NSFC (China)
- DST (India)
- MOEHRD, KOSEF
- KRF (Korea):
- KBN (Poland)
- MES
- RFAAE (Russia)
- ARRS (Slovenia)
- SNSF (Switzerland)
- NSC
- MOE (Taiwan)
- DOE (USA)
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We measure the CP-violating asymmetries in decays to the D-0 -> K+K- and D-0 -> pi(+)pi(-) CP eigenstates using 540 fb(-1) of data collected with the Belle detector at or near the gamma (4S) resonance. Cabibbo-favored D-0 -> K-pi(+) decays are used to correct for systematic detector effects. The results, A(CP)(KK) = (-0.43 +/- 0.30 +/- 0.11)% and A(CP)(pi pi) = (+0.43 +/- 0.52 +/-.12)%, are consistent with no CP violation. (c) 2008 Elsevier B.V. All rights reserved.
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