By D. Baetz
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Extra resources for Nucleon-Nucleon Interaction in a Chiral Constituent Quark Model [thesis]
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3 Model II The regularization of the short-range interaction in the second version, called Model II, is related to the property of a vanishing volume integral of the pseudoscalar meson exchange interaction. In the the Model I this is not the case. However, in a non-relativistic reduction in momentum space we have V (q = 0) = 0 which implies that the volume integral (i. e. the Fourier transform at q = 0) of the Goldstone boson exchange interaction in configuration space should vanish : dr V (r) = 0.
1300 .... 7: Spectra of N and ∆ in the non-relativistic GBE Model II (from Ref. [128]). 4 Spectra 33 In the next chapter we will study the NN interaction in the two non-relativistic versions of the GBE interaction, namely Model I and Model II. We mention however below the recent developments of the GBE constituent quark model, in a semi-relativistic version of the model.
It may simply be the case that experimental ambiguities do not allow yet for a reliable determination. In fact, there are single partial-wave analyzes that assign an appreciable η decay width, for example, also to the N1710 , see Ref. [13]. 46 The Goldstone Boson Exchange Model From the presented results it is still difficult to draw definite conclusions about the quality of the wave functions stemming from different quark models. In fact, the various decay widths seem to be more determined by the choice of the SR or NR parametrizations rather than by the use of either type of dynamics, GBE or OGE.