期刊
PHYSICAL REVIEW LETTERS
卷 112, 期 11, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.112.111801
关键词
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资金
- MEXT
- JSPS
- Nagoya's TLPRC (Japan)
- ARC and DIISR (Australia)
- FWF (Austria)
- NSFC (China)
- MSMT (Czechia)
- CZF, DFG, and VS (Germany)
- DST (India)
- INFN (Italy)
- MOE, MSIP, NRF, GSDC of KISTI, BK21Plus, and WCU (Korea)
- MNiSW and NCN (Poland)
- MES and RFAAE (Russia)
- ARRS (Slovenia)
- IKERBASQUE and UPV/EHU (Spain)
- SNSF (Switzerland)
- NSC and MOE (Taiwan)
- DOE and NSF (USA)
- NRF [2010-0021279, 2010-0021174]
- MEXT
- JSPS
- Nagoya's TLPRC (Japan)
- ARC and DIISR (Australia)
- FWF (Austria)
- NSFC (China)
- MSMT (Czechia)
- CZF, DFG, and VS (Germany)
- DST (India)
- INFN (Italy)
- MOE, MSIP, NRF, GSDC of KISTI, BK21Plus, and WCU (Korea)
- MNiSW and NCN (Poland)
- MES and RFAAE (Russia)
- ARRS (Slovenia)
- IKERBASQUE and UPV/EHU (Spain)
- SNSF (Switzerland)
- NSC and MOE (Taiwan)
- DOE and NSF (USA)
- NRF [2010-0021279, 2010-0021174]
- National Research Foundation of Korea [2010-0021279, 2010-0021174] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Austrian Science Fund (FWF) [P 22742] Funding Source: researchfish
We observe D-0-(D) over bar (0) mixing in the decay D-0 -> K+ pi(-) using a data sample of integrated luminosity 976 fb(-1) collected with the Belle detector at the KEKB e(+) e(-) asymmetric-energy collider. We measure the mixing parameters x'(2) = (0.09 +/- 0.22) x 10(-3) and y' = (4.6 +/- 3.4) x 10(-3) and the ratio of doubly Cabibbo-suppressed to Cabibbo-favored decay rates R-D = (3.53 +/- 0.13) x 10(-3) where the uncertainties are statistical and systematic combined. Our measurement excludes the no-mixing hypothesis at the 5.1 standard deviation level.
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