A Diquark-Triquark Model for the KN Pentaquark

Harry J. Lipkin; Marek Karliner

A Diquark-Triquark Model for the KN Pentaquark

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arxiv hep-ph/0402260 v1 pith:6JRMBBGC submitted 2004-02-24 hep-ph hep-ex

Marek Karliner , Harry J. Lipkin This is my paper · ORCID

classification hep-phhep-ex

keywords colorpentaquarkmodelanti-tripletantidecupletclosecoupleddiquark

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We propose a model for the recently discovered Theta^+ exotic KN resonance as a novel kind of a pentaquark with an unusual color structure: a color triplet (ud) diquark, coupled to a color anti-triplet (ud s-bar) triquark in a relative P-wave. The state has J^P=1/2^+, I=0 and is an antidecuplet of SU(3)_f. A rough mass estimate of this pentaquark is close to experiment.

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$X(3872)$ and hidden charmed tetraquarks
hep-ph 2025-06 conditional novelty 4.0 of 10

A diquark-antidiquark quark model with parameters fitted to X(3872) and Tcc predicts hidden-charm tetraquark masses and tentatively assigns XYZ states.

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