Where is the stable Pentaquark

Abstract

We systematically analyze the flavor color spin structure of the pentaquark $q^4\bar{Q}$ system in a constituent quark model based on the chromomagnetic interaction in both the SU(3) flavor symmetric and SU(3) flavor broken case with and without charm quarks. We show that the originally proposed pentaquark state $\bar{Q}sqqq$ by Gignoux et al and by Lipkin indeed belongs to the most stable pentaquark configuration, but that when charm quark mass correction based on recent experiments are taken into account, a doubly charmed antistrange pentaquark configuration ($udcc\bar{s}$) is perhaps the only flavor exotic configuration that could be stable and realistically searched for at present through the ${\Lambda }_c{K}^{+}{K}^{-}{\pi }^{+}$ final states. The proposed final state is just reconstructing $K^{+}$ instead of ${\pi }^{+}$ in the measurement of ${\Xi }_{cc}^{++}\to {\Lambda }_c{K}^{-}{\pi }^{+}{\pi }^{+}$ reported by LHCb collaboration and hence measurable immediately.

arXiv comment5pages,5tables

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Cited by in corpus (16)

• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• A survey of heavy-heavy hadronic molecules
• Production of $P_{cs}(4459)$ from ${\Xi }_b$ decay
• Fully heavy pentaquarks
• Spectroscopy behavior of fully heavy tetraquarks
• Spectrum of the doubly charmed molecular pentaquarks in chiral effective field theory
• Spectrum of the molecular pentaquarks
• Electromagnetic properties of doubly heavy pentaquark states
• Heavy flavor pentaquarks with four heavy quarks
• Manifestly exotic pentaquarks with a single heavy quark
• Exotic pentaquark states with the $qqQQ\bar{Q}$ configuration
• Exploring the spectrum of the hidden charm strange pentaquark in an SU(4) flavor-spin model
• Prediction of five-flavored pentaquarks
• The doubly-charmed pentaquark in a quark model with a complete set of harmonic oscillator bases
• Doubly-charmed pentaquark states in a mass splitting model
• The study of doubly charmed pentaquark $cc\bar{q}qq$ with the SU(3) symmetry