摘要
We study the decays of the antitriplet charmed baryon state (Ξc0,Ξc+,Λc+) based on the SU(3) flavor symmetry. In particular, after predicting B(Ξc0→Ξ-π+)=(15.7±0.7)×10-3 and B(Ξc+→Ξ-π+π+)=(14.7±8.4)×10-3, we extract that B(Ξc0→ΛK-π+,ΛK+K-,Ξ-e+νe)=(16.8±2.3,0.45±0.11,48.7±17.4)×10-3 and B(Ξc+→pKs0Ks0,Σ+K-π+,Ξ0π+π0,Ξ0e+νe)=(1.3±0.8,13.8±8.0,33.8±21.9,33.8-22.6+21.9)×10-3. We also find that B(Ξc0→Ξ0η,Ξ0η′)=(1.7-1.7+1.0,8.6-6.3+11.0)×10-3, B(Ξc0→Λ0η,Λ0η′)=(1.6-0.8+1.2,9.4-6.8+11.6)×10-4 and B(Ξc+→Σ+η,Σ+η′)=(28.4-6.9+8.2,13.2-11.9+24.0)×10-4. These Ξc decays with the branching ratios of O(10-4-10-3) are clearly promising to be observed by the BESIII and LHCb experiments.