Final state interactions in the decays J/psi->VPP

Details Final state interactions in the decays J/psi->VPP Final state interactions in the decays J/psi->VPP

2009-01-09

arxiv.org/abs/0901.1185v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 figures, 13 pages

Scientific paper

We investigate the interplay between crossed channel final state interactions and the constraints from two--particle unitarity for the reactions J/psi->V pi pi and VK\bar K, where V is either omega or phi. Using a model where the parameters are largely constrained by other sources, we find that, although small, crossed channel final state interaction can influence the amplitudes considerably, in special areas of phase space. These results cast doubt on the inapplicability of unitarity constraints on production amplitudes as recently claimed in the literature.

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