Abstract
Earlier described model amplitudes are used in this paper to evaluate both cross sections and density matrices for two-photon mediated resonance production in e + e − collisions. All 25 q q ̄ low-lying 1S 0 , 3P J and 1D 2 resonances can thus be treated. Two independent methods are described to obtain the resonance production density matrices and cross sections. These density matrices combined with a resonance decay density matrix give the detailed angular distributions of the resonance decay products. For two particular decays, χ c2 , χ c1 → γJ/ ψ the details are given. Several numerical results are presented as well.
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