Three-body mechanism of η production
K. P. Khemchandani, N. G. Kelkar, B. K. Jain
Abstract
The usefulness of the three-body mechanism of η-meson production is tested by extending to high energies a recently developed two step model of the p d 3He η reaction by us, which was successful in reproducing the energy dependence of the data near threshold. The η production in this model, proceeds in two steps via the p p πd and πN ηp reactions with the intermediate particles being off-shell. The final state interaction(FSI) is incorporated through a T-matrix for η3He elastic scattering constructed using few body equations. In a comparison of the calculated angular distributions with some recently available data, we discover the limitations of the model at high energies.
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