Evidence for the tensor meson exchange in the kaon photoproduction

Abstract

The contribution of the tensor meson $K_2^{\ast }(1430)$ exchange in the process $\gamma p\to K^{+}\Lambda ({\Sigma }^0)$ is investigated within the Regge framework. Inclusion of the $K_2^{\ast }$ exchange in the $K(494)+K^{\ast }(892)$ exchanges with the coupling constants chosen from the SU(3) symmetry leads to a better description of the production mechanism without referring to any fitting procedure. This shows the significance of the role of the tensor meson exchange to have the Regge theory basically free of parameters with the SU(3) symmetry a good approximation for the meson-baryon couplings.

arXiv comment5 pages, 4 figures, 2 tables

References in corpus (9)

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• Measurement of gamma p --> K+ Lambda and gamma p --> K+ Sigma0 at photon energies up to 2.6 GeV
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• Global analysis of charge exchange meson production at high energies
• Investigating convergence of the reaction $\gamma p\to {\pi }^{\pm }\Delta$ and tensor meson $a_2$ exchange at high energy
• Revisit of tensor-meson nonet in resonance chiral theory
• Meson exchange effects in elastic $ep$ scattering at loop level and the electromagnetic form factors of the proton
• Features of $\omega$ photoproduction off nucleon target at forward angles : Dominance of $\pi$ exchange with Regge cuts and scaling of differential cross sections
• Regge approach to the reaction of $\gamma N\to K^{\ast }\Lambda$
• Photoproduction of $\gamma p\to K^{+}{\Lambda }^{\ast }(1520)$ and decay of ${\Lambda }^{\ast }(1520)\to K^{-}p$ in the Reggeized framework
• Features of forward $\pi N$ scattering from a Reggeized model
• Photoproduction of $\gamma N\to K^{+}{\Sigma }^{\ast }(1385)$ in the Reggeized framework
• Role of the $K_1$ meson in $K^0$ photoproduction off the deuteron
• A new combined analysis of elastic and charge exchange $KN(\bar{K}N)$ scatterings in the Regge realm