NN interaction in a Goldstone boson exchange model

Details NN interaction in a Goldstone boson exchange model NN interaction in a Goldstone boson exchange model

1999-03-30

arxiv.org/abs/hep-ph/9903533v2

Phys.Rev. C60 (1999) 055207

Physics

High Energy Physics

High Energy Physics - Phenomenology

32 pages with 12 eps figures incorporated, RevTeX. Final version published in PRC

Scientific paper

10.1103/PhysRevC.60.055207

Adiabatic nucleon-nucleon potentials are calculated in a six-quark nonrelativistic chiral constituent quark model where the Hamiltonian contains a linear confinement and a pseudoscalar meson (Goldstone boson) exchange interaction between quarks. Calculations are performed both in a cluster model and a molecular orbital basis, through coupled channels. In both cases the potentials present an important hard core at short distances, explained through the dominance of the [51]_{FS} configuration, but do not exhibit an attractive pocket. We add a scalar meson exchange interaction and show how it can account for some middle-range attraction.

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