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Observation of the Decay [Formula presented]
Journal article   Peer reviewed

Observation of the Decay [Formula presented]

N. Kawamura, H. Yuta, V. Aulchenko, A. Bondar, S. Eidelman, A. Garmash, P. Krokovny, A. Kuzmin, N. Root, B. Schwartz, …
Physical Review Letters, Vol.88(2), p.6
2002

Abstract

Physics and Astronomy (all)
We report a search for the flavor-changing neutral current decay [Formula presented] using a [Formula presented] data sample accumulated at the [Formula presented] resonance with the Belle detector at the KEKB [Formula presented] storage ring. We observe the decay process [Formula presented], for the first time, with a branching fraction of [Formula presented]. © 2002 The American Physical Society.

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