Measurement of the branching fraction of Ξc0 → Λc+ π- At Belle

The Belle collaboration

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Based on a data sample of 983 fb-1 collected with the Belle detector at the KEKB asymmetric-energy e+e- collider, we present the study of the heavy-flavor-conserving decay Ξc0→Λc+π- with Λc+ reconstructed via its pK-π+ decay mode. The branching fraction ratio B(Ξc0→Λc+π-)/B(Ξc0→Ξ-π+) is measured to be 0.38±0.04±0.04. Combining with the world average value of B(Ξc0→Ξ-π+), the branching fraction B(Ξc0→Λc+π-) is deduced to be (0.54±0.05±0.05±0.12)%. Here, the uncertainties above are statistical, systematic, and from B(Ξc0→Ξ-π+), respectively.

Original languageEnglish
Article number032005
JournalPhysical Review D
Issue number3
StatePublished - 1 Feb 2023


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