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28 March 2024
 
  » arxiv » 1707.1779

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Establishing low-lying doubly charmed baryons
Hua-Xing Chen ; Qiang Mao ; Wei Chen ; Xiang Liu ; Shi-Lin Zhu ;
Date 6 Jul 2017
AbstractWe 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 $J^P = 1/2^+$, while it may also be identified as the $S$-wave $Xi_{cc}$ state of $J^P = 3/2^+$. We study their relevant $Omega_{cc}$ states, whose masses are 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. Especially, there can be several excited doubly charmed baryons in this energy region, and we suggest to search for them in order to study the fine structure of the strong interaction.
Source arXiv, 1707.1779
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