Observation of D 0 → K 0 K 0
Physics Letters B(1988)
摘要
Abstract We have observed the decay mode D 0 → K S 0 K S 0 . The signal was isolated by detecting both K S 0 's decaying via K S 0 → π + π − , and by using the well-known D ∗+ → D 0 π + mass difference. We have measured the branching fraction of D 0 → K S 0 K S 0 relative to D 0 → K + K − and find the ratio Γ( D 0 → K 0 K 0 )/Γ( D 0 → K + K − ) to be 0.4 ± 0.3.
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关键词
d0,observation
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