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research article
Evidence for D0-D̄0 mixing
We observe evidence for D0-D̄0 mixing by measuring the difference in the apparent lifetime when a D0 meson decays to the CP eigenstates K+K- and π+π- and when it decays to the final state K-π+. We find the relative difference of the lifetimes yCP to be [1.31±0.32(stat)±0.25(syst)] %, 3.2 standard deviations from zero. We also search for a CP asymmetry between D0 and D̄0 decays; no evidence for CP violation is found. These results are based on 540fb-1 of data recorded by the Belle detector at the KEKB e+e- collider. © 2007 The American Physical Society.
Type
research article
Web of Science ID
WOS:000246776100015
Scopus ID
2-s2.0-34547287233
Authors
Starič, M.
•
Golob, B.
•
Abe, K.
•
Adachi, I.
•
Aihara, H.
•
Arinstein, K.
•
Aushev, T.
•
Aziz, T.
•
Bahinipati, S.
•
Bakich, A.M.
Publication date
2007
Published in
Volume
98
Issue
21
Article Number
211803
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
November 5, 2010
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