Partners of the Theta^+ in Large N_c QCD

Details Partners of the Theta^+ in Large N_c QCD Partners of the Theta^+ in Large N_c QCD

2003-09-12

arxiv.org/abs/hep-ph/0309150v1

Phys.Lett. B578 (2004) 150-155

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, no figures, Revtex

Scientific paper

A strangeness +1 exotic baryon Theta^+ has recently been seen in a number of experiments. We demonstrate that in large N_c QCD the existence of such a state implies the existence of S = +1 partner states with various spins and isospins but comparable masses. We discuss the spectroscopy of such states and possible channels in which they can be observed, based on the simple assumption that those states with pentaquark quantum numbers are unlikely to be large N_c artifacts.

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