P. Avery et al., STUDY OF THE DECAYS LAMBDA(C)-]XI(0)K+,LAMBDA(C)+-]SIGMA +K+K-, AND LAMBDA(C)+-]XI-K+PI+(), Physical review letters, 71(15), 1993, pp. 2391-2395
We report the measurement of new modes of the charmed baryon LAMBDA(c)
+ using data recorded by the CLEO II detector at the Cornell Electron
Storage Ring. We find branching ratios, relative to LAMBDA(c)+ --> pK-
pi+, of 0.070 +/- 0.011 +/- 0.011 for LAMBDA(c)+ --> SIGMA+K+K-, 0.069
+/- 0.023 +/- 0.016 for LAMBDA(c)+ --> SIGMAphi, 0.078 +/- 0.013 +/-
0.013 for LAMBDA(c)+ --> XI0K+, and 0.053 +/- 0.016 +/- 0.010 for LAMB
DA(c)+ --> XI0K+. These measurements indicate that W-exchange diagram
s contribute to LAMBDA(c)+ decay. We have also made a new measurement
of the previously found mode LAMBDA(c)+ --> XI-K+pi+.