A Diquark-Triquark Model for the KN Pentaquark

Details A Diquark-Triquark Model for the KN Pentaquark A Diquark-Triquark Model for the KN Pentaquark

2004-02-24

arxiv.org/abs/hep-ph/0402260v1

Phys.Lett.B575:249-255,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

A condensed and amended version of hep-ph/0307243, as published in PLB, to include pentaquark analysis only, with a revised ti

Scientific paper

10.1016/j.physletb.2003.09.062

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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