Study of the decay D0 → K+π-

FOCUS Collaboration

Research output: Contribution to journalArticlepeer-review


A signal in the decay channel D0 → K+ φ- was observed and its branching ratio relative to D0 → K- φ+ to be (0.404 ± 0.085 ± 0.025)% was measured. Results show that if charm sector mixing is signficant, the doubly Cabibbo suppressed component of the branching ratio can be determined from the measured ratio by using the relation expressed. While if the charm mixing is sufficiently small, the doubly Cabibbo suppressed branching ratio is simply equal to the measured ratio.

Original languageEnglish (US)
Pages (from-to)2955-2958
Number of pages4
JournalPhysical review letters
Issue number14
StatePublished - Apr 2 2001

ASJC Scopus subject areas

  • General Physics and Astronomy


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