Phenomenology of the Pentaquark Antidecuplet

Details Phenomenology of the Pentaquark Antidecuplet Phenomenology of the Pentaquark Antidecuplet

2003-07-31

arxiv.org/abs/hep-ph/0307396v2

Phys.Lett. B573 (2003) 101-108

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages LaTeX, 1 eps figure

Scientific paper

We consider the mass splittings and strong decays of members of the lowest-lying pentaquark multiplet, which we take to be a parity-odd antidecuplet. We derive useful decompositions of the quark model wave functions that allow for easy computation of color-flavor-spin matrix elements. We compute mass splittings within the antidecuplet including spin-color and spin-isospin interactions between constituents and point out the importance of hidden strangeness in rendering the nucleon-like states heavier than the S=1 state. Using recent experimental data on a possible S=1 pentaquark state, we make decay predictions for other members of the antidecuplet.

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