期刊
CHINESE PHYSICS C
卷 42, 期 5, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1674-1137/42/5/051001
关键词
doubly charmed baryon; weak decay; branching fraction; factorization; final-state interaction
资金
- National Natural Science Foundation of China [11505083, 11505098, 11647310, 11575110, 11375208, 11521505, 11621131001, 11235005, 11447032, U1732101]
- Natural Science Foundation of Shanghai [15DZ2272100]
The existence of doubly heavy flavor baryons has not been well established experimentally so far. In this Letter we systematically investigate the weak decays of the doubly charmed baryons, xi(++)(cc)and xi(+)(cc) which should be helpful for experimental searches for these particles. The long-distance contributions are first studied in the doubly heavy baryon decays, and found to be significantly enhanced. Comparing all the processes, xi(++)(cc) ->Lambda K-+(c)-pi(+)pi(+) and xi(+)(c)pi(+ )are the most favorable decay modes for experiments to search for doubly heavy baryons.
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