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Establishing low-lying doubly charmed baryons · Around

2017

Establishing low-lying doubly charmed baryons

Chen, Hua-Xing, Mao, Qiang, Chen, Wei et al.

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We systematically study the $S$-wave doubly charmed baryons using the method of QCD sum rules.

Our results suggest that the $\Xi_{cc}^{++}$ recently observed by LHCb can be well identified as the $S$-wave $\Xi_{cc}$ state of $J^P = 1/2^+$.
We study its relevant $\Omega_{cc}$ state, whose mass is predicted to be around 3.7 GeV.
We also systematically study the $P$-wave doubly charmed baryons, whose masses are predicted to be around 4.1 GeV.

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