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Cross sections for pentaquark baryon production from protons in reactions induced by hadrons and photons

W. Liu·C. M. Ko
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Abstract

Using hadronic Lagrangians that include the interaction of pentaquark $Θ^+$ baryon with $K$ and $N$, we evaluate the cross sections for its production from meson-proton, proton-proton, and photon-proton reactions near threshold. With empirical coupling constants and form factors, the predicted cross sections are about 1.5 mb in kaon-proton reactions, 0.1 mb in rho-nucleon reactions, 0.05 mb in pion-nucleon reactions, 20 $μ$b in proton-proton reactions, and 40 nb in photon-proton reactions.

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W. Liu, C. M. Ko. 2003-08-11. Cross sections for pentaquark baryon production from protons in reactions induced by hadrons and photons. https://doi.org/10.1103/physrevc.68.045203

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