Non-leptonic two-body weak decays of Lambda_c(2286)
Non-leptonic two-body weak decays of Lambda_c(2286)
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Lambda_c(2286) 的非轻子二体弱衰变
DOI：
10.1016/j.physletb.2017.11.062
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Liang-Liang Liu
中科院分区：
文献类型：
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作者：
C.Q. Geng;Yu-Kuo Hsiao;Yu-Heng Lin;Liang-Liang Liu
我们研究了 Λ c+(2286)→ B n M 的非轻子二体弱衰变，其中 B n (M) 代表重子（介子）态。基于SU(3)风味对称性，我们可以以更高的精度描述BESIII协作组复查的大部分数据。然而，我们的结果 B (Λ c+→ p π 0)=(5.6±1.5)× 10− 4 大于 BESIII 当前的实验极限 3× 10− 4 (90% CL)。另外，我们发现 B (Λ c+→ Σ+ K 0)=(8.0±1.6)× 10− 4，B (Λ c+→ Σ+ η′)=(1.0− 0.8+ 1.6)× 10− 2，B (Λ c+→ p η′)=(12.2− 8.7+ 14.3)× 10− 4，分别为可用于 BESIII 实验。
We study the non-leptonic two-body weak decays of Λ c+(2286)→ B n M with B n (M) representing as the baryon (meson) states. Based on the S U (3) flavor symmetry, we can describe most of the data reexamined by the BESIII Collaboration with higher precisions. However, our result of B (Λ c+→ p π 0)=(5.6±1.5)× 10− 4 is larger than the current experimental limit of 3× 10− 4 (90% CL) by BESIII. In addition, we find that B (Λ c+→ Σ+ K 0)=(8.0±1.6)× 10− 4, B (Λ c+→ Σ+ η′)=(1.0− 0.8+ 1.6)× 10− 2, and B (Λ c+→ p η′)=(12.2− 8.7+ 14.3)× 10− 4, which are accessible to the BESIII experiments.