Title of article
Observation of Cabibbo-suppressed and W-exchange Λc+ baryon decays
Author/Authors
Belle Collaboration، نويسنده , , K. Abe، نويسنده , , K. Abe، نويسنده , , R. Abe، نويسنده , , T. Abe، نويسنده , , José I. Adachi and Anthony P. Peirce ، نويسنده , , Byoung Sup Ahn، نويسنده , , H. Aihara، نويسنده , , M. Akatsu، نويسنده , , Y. Asano، نويسنده , , T. Aso، نويسنده , , V. Aulchenko، نويسنده , , T. Aushev، نويسنده , , A.M. Bakich، نويسنده , , Y. Ban، نويسنده , , E. Banas، نويسنده , , S. Behari، نويسنده , , P.K. Behera، نويسنده , , A. Bondar، نويسنده , , A. Bozek، نويسنده , , et al.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2002
Pages
11
From page
33
To page
43
Abstract
We present measurements of the Cabibbo-suppressed decays Λc+→Λ0K+ and Λc+→Σ0K+ (both first observations), Λc+→Σ+K+π− (seen with large statistics for the first time), Λc+→pK+K− and Λc+→pφ (measured with improved accuracy). Improved branching ratio measurements for the decays Λc+→Σ+K+K− and Λc+→Σ+φ, which are attributed to W-exchange diagrams, are shown. We also present the first evidence for Λc+→Ξ(1690)0K+ and set an upper limit on the non-resonant decay Λc+→Σ+K+K−. This analysis was performed using 32.6 fb−1 of data collected by the Belle detector at the asymmetric e+e− collider KEKB.
Keywords
Charmed baryon , Cabibbo-suppressed , W-exchange
Journal title
PHYSICS LETTERS B
Serial Year
2002
Journal title
PHYSICS LETTERS B
Record number
915083
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