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Photoproduction of Theta baryon from the neutron

S. I. Nam, A. Hosaka, H. -Ch. Kim

hep-pharXiv:hep-ph/0308313

Abstract

We study photoproduction reactions for Theta+, which was recently observed as a candidate of an exotic five quark state uudd(bar s). We employ effective lagrangian interactions in the linear and non-linear formalism of chiral symmetry and investigate two cases of spin and parity of Theta+, JP = 1/2+ and 1/2-. We calculate cross sections and discuss possibilities to discriminate one from the other.

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