Photoproduction of Θ baryon from the neutron

We study photoproduction reactions for Θ+, which was recently observed as a candidate of an exotic five quark state uudds̄. We employ effective Lagrangian interactions with a pseudoscalar or pseudovector meson–baryon coupling and investigate two cases of spin and parity of Θ+, JP=1/2+ and 1/2−. We c...

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Bibliographic Details
Published in:Physics letters. B 2004-01, Vol.579 (1-2), p.43-51
Main Authors: Nam, S.I., Hosaka, A., Kim, H.-Ch
Format: Article
Language:English
Subjects:
Baryons (including antiparticles)
Exact sciences and technology
Kaon photoproduction
Physics
Properties of specific particles
Protons and neutrons
The physics of elementary particles and fields
Θ+ baryon
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Summary:We study photoproduction reactions for Θ+, which was recently observed as a candidate of an exotic five quark state uudds̄. We employ effective Lagrangian interactions with a pseudoscalar or pseudovector meson–baryon coupling and investigate two cases of spin and parity of Θ+, JP=1/2+ and 1/2−. We calculate cross sections and discuss possibilities to discriminate one from the other.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2003.10.105