Abstract
We present measurements of the Cabibbo-suppressed decays Λ + c → Λ0K + and Λ + c → Λ0K + (both first observations), Λ + c → Λ + K + π - (seen with large statistics for the first time), Λ + c → pK + K - and Λ + c → pφ (measured with improved accuracy). Improved branching ratio measurements for the decays Λ + c → Λ + K + K - and Λ + c → Λ + φ, which are attributed to W-exchange diagrams, are shown. We also present the first evidence for {equation presented} and set an upper limit on the non-resonant decay Λ + c → Λ + 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.
Original language | English |
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Pages (from-to) | 33-43 |
Number of pages | 11 |
Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 524 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 2002 Jan 3 |
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics