PAO-TI CHANG et al.2019-09-092019-09-092002-01-0100319007https://scholars.lib.ntu.edu.tw/handle/123456789/418070Using a sample of [Formula presented] pairs collected with the Belle detector at the [Formula presented] resonance, we make the first observation of the charged [Formula presented] meson decay to [Formula presented] and a charged kaon. The measured branching fraction is [Formula presented], where the first error is statistical, and the second is systematic. © 2002 The American Physical Society.journal article10.1103/PhysRevLett.88.0318022-s2.0-85038288466https://api.elsevier.com/content/abstract/scopus_id/85038288466