A Diquark-Triquark Model for the KN Pentaquark

Preprint

25 February 2004

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/0402260

Abstract

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.

Keywords

DIQUARK TRIQUARK
COLOR STRUCTURE
TRIQUARK MODEL
KN PENTAQUARK

All Related Versions

Version 1, 2004-02-25, ArXiv
Published version: Physics Letters B, 575 (3-4), 249.

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