New narrow LHCb pentaquarks as lowest antiquark-diquark-diquark systems

Abstract

The antiquark-diquark-diquark model describes pentaquark states both in terms of quarks and hadrons. We discuss pentaquark states with hidden charm $P(\bar{c}cuud)$ discovered in the $J/\Psi p$ spectrum by the LHCb collaboration. We consider three pentaquark states as members of the lowest ($S$-wave) multiplet and discuss the mass splitting scheme. The latest LHCb data for pentaquarks with hidden charm provide an opportunity to make an assumption about the diquark content of the pentaquark states. We give a classification for the LHCb pentaquarks and define recombination channels for these states.

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Cited by in corpus (5)

• Hidden charm pentaquark states in a diquark model
• Compact hidden charm pentaquark states and QCD isomers
• Properties of $P_c(4312)$ pentaquark and its bottom partner
• A Simple Model of Pentaquarks
• Observation of ${\Lambda }_b^0\to {\Lambda }_c^{+}{\bar{D}}^{(\ast )0}{K}^{-}$ and ${\Lambda }_b^0\to {\Lambda }_c^{+}{D}_s^{\ast -}$ decays