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research article
Search for leptonic decays of D^{0} mesons
2010
We search for the flavor-changing neutral current decays D-0 -> mu(+)mu(-) and D-0 -> e(+)e(-), and for the lepton-flavor violating decays D-0 -> e(+/-)mu(-/+) using 660 fb(-1) of data collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We find no evidence for any of these decays. We obtain significantly improved upper limits on the branching fractions: B(D-0 -> mu(+)mu(-)) < 1.4 x 10(-7), B(D-0 -> e(+)e(-)) < 7.9 x 10(-8), and B(D-0 -> e(+)mu(-)) + B(D-0 -> mu(+)e(-)) < 2.6 x 10(-7) at 90% confidence level.
Type
research article
Web of Science ID
WOS:000278145100002
Authors
Petrič, M.
•
Starič, M.
•
Adachi, I.
•
Aihara, H.
•
Arinstein, K.
•
Aushev, T.
•
Bakich, A. M.
•
Balagura, V.
•
Barberio, E.
•
Belous, K.
Publication date
2010
Published in
Volume
81
Issue
9
Article Number
091102(R)
Subjects
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
November 5, 2010
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