### Abstract

Starting with the dynamical picture of the exotic cc--containing states XYZ as the confinement-induced hadronization of a rapidly separating pair of a compact diquark and antidiquark, we describe the pentaquark candidates P<inf>c</inf><sup>+</sup>(4380) and P<inf>c</inf><sup>+</sup>(4450) in terms of a confined but rapidly separating color-antitriplet diquark cu and color-triplet "triquark" c-(ud). This separation explains the relatively small P<inf>c</inf><sup>+</sup> widths, despite these 5-quark systems lying far above both the J/ψ p and Λ<inf>c</inf><sup>D-(*)0</sup> thresholds. The P<inf>c</inf><sup>+</sup> states are predicted to form isospin doublets with neutral partners P<inf>c</inf><sup>0</sup>.

Original language | English (US) |
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Article number | 31268 |

Pages (from-to) | 454-457 |

Number of pages | 4 |

Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |

Volume | 749 |

DOIs | |

State | Published - Oct 7 2015 |

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### Keywords

- Diquarks
- Exotic baryons
- Pentaquarks

### ASJC Scopus subject areas

- Nuclear and High Energy Physics