Phys. Rev. Lett. 71, 2391–2395 (1993)

Study of the decays Λ_c⁺→Ξ⁰K⁺, Λ_c⁺→Σ⁺K⁺K^-, and Λ_c⁺→Ξ^-K⁺π⁺

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P. Avery et al.
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Received 6 May 1993; published in the issue dated 11 October 1993

We report the measurement of new modes of the charmed baryon Λ_c⁺ using data recorded by the CLEO II detector at the Cornell Electron Storage Ring. We find branching ratios, relative to Λ_c⁺→pK^-π⁺, of 0.070±0.011±0.011 for Λ_c⁺→Σ⁺K⁺K^-, 0.069±0.023±0.016 for Λ_c⁺→Σφ, 0.078±0.013±0.013 for Λ_c⁺→Ξ⁰K⁺, and 0.053±0.016±0.010 for Λ_c⁺→Ξ^*0K⁺. These measurements indicate that W-exchange diagrams contribute to Λ_c⁺ decay. We have also made a new measurement of the previously found mode Λ_c⁺→Ξ^-K⁺π⁺.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.71.2391

DOI:

10.1103/PhysRevLett.71.2391

PACS:

13.30.Eg, 14.20.Kp

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Phys. Rev. Lett. 71, 2391–2395 (1993)

Study of the decays Λc+→Ξ0K+, Λc+→Σ+K+K-, and Λc+→Ξ-K+π+

Study of the decays Λ_c⁺→Ξ⁰K⁺, Λ_c⁺→Σ⁺K⁺K^-, and Λ_c⁺→Ξ^-K⁺π⁺