eta d scattering in the region of the S11 resonance

Details eta d scattering in the region of the S11 resonance eta d scattering in the region of the S11 resonance

2000-02-24

arxiv.org/abs/nucl-th/0002056v1

Phys.Rev. C61 (2000) 064010

Physics

Nuclear Physics

Nuclear Theory

18 pages Revtex, 2 figures

Scientific paper

10.1103/PhysRevC.61.064010

We have studied the reaction eta d -> eta d close to threshold within a nonrelativistic three-body formalism. We considered several eta N and NN models, in particular potentials with separable form, fitted to the low-energy eta N and NN data to represent the two-body interactions. We found that with realistic two-body interactions a quasibound state does not exist in this system, although there is an enhancement of the cross section by one order of magnitude, in the region near threshold, which is a genuine three-body effect not predicted within the impulse approximation.

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