A Selection Rule for Multiquark Decays

Abstract

By assuming SU(6)_cs symmetry for pentaquark decays one finds a selection rule, which strongly reduces the number of states able to decay into a baryon and a meson final state and allows an intriguing identification for the Theta^+ particle recently discovered with the prediction of a narrow width.

10 pages, no figures

References in corpus (10)

• Evidence for Narrow S=+1 Baryon Resonance in Photo-production from Neutron
• Diquarks and Exotic Spectroscopy
• Evidence for the positive-strangeness pentaquark ${\Theta }^{+}$ in photoproduction with the SAPHIR detector at ELSA
• Stable $uudd\bar{s}$ pentaquarks in the constituent quark model
• Phenomenology of the Pentaquark Antidecuplet
• Scalar form factors of light mesons
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• Spectroscopy of pentaquark states
• A Naturally Narrow Positive Parity Theta^+
• Narrow width pentaquarks

Cited by in corpus (2)

• Chromomagnetism, flavour symmetry breaking and S-wave tetraquarks
• b decays: a factory for hidden charm multiquark states