On the treatment of $NN$ interaction effects in meson production in $NN$ collisions

Details On the treatment of $NN$ interaction effects in meson production in $NN$ collisions On the treatment of $NN$ interaction effects in meson production in $NN$ collisions

1998-09-18

arxiv.org/abs/nucl-th/9809059v1

Phys.Lett. B454 (1999) 176-180

Physics

Nuclear Physics

Nuclear Theory

9 pages, 1 figure, submitted to Phys. Lett. B

Scientific paper

10.1016/S0370-2693(99)00377-9

We clarify under what circumstances the nucleon--nucleon final state interaction fixes the energy dependence of the total cross--section for the reaction $NN \to NNx$ close to production threshold, where $x$ can be any meson whose interaction with the nucleon is not too strong. We strongly criticize the procedure used recently by several authors to include the final state interaction in the reactions under discussion. In addition, we give a formula that allows one to estimate the effect of the initial state interaction for the production of heavy mesons.

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