On the Migdal-Watson approach to FSI effects in meson production in NN collisions

Details On the Migdal-Watson approach to FSI effects in meson production in NN collisions On the Migdal-Watson approach to FSI effects in meson production in NN collisions

2000-06-29

arxiv.org/abs/nucl-th/0006075v1

Phys.Atom.Nucl.64:579-584,2001; Yad.Fiz.64:633-638,2001

Physics

Nuclear Physics

Nuclear Theory

13 pages, 6 figures

Scientific paper

10.1134/1.1358484

The influence of the nucleon-nucleon final state interaction (FSI) on properties of the meson production amplitude near threshold is discussed. For the nucleon-nucleon interaction a simple Yamaguchi potential as well as realistic potential models are considered. It is shown that FSI effects cannot be factorized from the production amplitude. The absolute magnitude of FSI effects depends on the momentum transfer (or on the mass of the produced meson) and hence is not universal. Only in the case of the production of rather heavy mesons like eta' or phi FSI effects become universal. The Jost function approach to FSI effects is critically examined.

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