a0(980) photoproduction in the coupled channel model
Abstract
We calculated the coupled channel photoproduction amplitudes of the scalar isovector resononace a0(980), which include the πη, K+K- and K0K0 intermediate states. Based on them we obtained the mass distribution in the πη channel at photon energy Eγ=7 GeV, corresponding to energy accissible in new JLab experiments CLAS12 and GlueX. We also analyzed the shape of mass distribution as a function of the phase of the background amplitude.
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