Photoproduction of Theta baryon from the neutron

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^+, J^P = 1/2^+ and 1/2^-. We calculate cross sections and discuss possibilities to discriminate one from the other.

14 pages, 19 figures

References in corpus (1)

• Time delayed K+ N reactions and exotic baryon resonances

Cited by in corpus (53)

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• Suppression of Theta^+(J^P=3/2^(+,-)) photoproduction from the proton
• Spin observables and the determination of the parity of ${\Theta }^{+}$ in photoproduction reactions
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• A Phenomenological Lagrangian Approach to Two Kaon Photoproduction and Pentaquark Searches
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• Investigating the parity of the exotic Theta^+ baryon from the kaon photoproduction
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• Comparative Regge analysis of $\Lambda ,{\Sigma }^0,\Lambda (1520)$ and ${\Theta }^{+}$ production in $\gamma p$, $\pi p$ and $pp$ reactions
• Spin asymmetries in gamma + N --> K*bar + Theta^+
• Pentaquark baryon production from photon-neuteron reactions
• Magnetic moment of the pentaquark ${\Theta }^{+}(1540)$ as diquark-diquark-antiquark state with QCD sum rules
• Magnetic interaction induced by the anomaly in kaon-photoproductions
• Threshold production of the ${\Theta }^{+}$ in a polarized proton reaction
• Photoproduction of pentaquark cascades from nucleons
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• Magnetic moment of the pentaquark ${\Theta }^{+}(1540)$ with light-cone QCD sum rules
• Phenomenological study of two-meson couplings of Theta+
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• Studies on the $K^{\ast }\Sigma$ bound-state via $K^{+}p\to K^{+}\varphi p$
• Investigate the pentaquark resonance in the $NK$ system
• Polarization Observables in $\gamma N\to K\bar{K}N$
• Structure and reactions of pentaquark baryons
• Pentaquark Theta^+ production via gamma N ->K^*bar Theta^+(3/2^(+-))
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• Effect of Chiral Symmetry Restoration on Pentaquark ${\Theta }^{+}$ Mass and Width at Finite Temperature and Density
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