The NN interaction in a quark model with quark-antiquark excitations

Meson Exchange Potentials in an Nn Quark Model with Quark-antiquark Excitations

In a recent quark-model study of the NN interaction, we explicitly incorporated the qq excitations inherent in the quark-gluon interaction lagrangian into the model space, and examined the contributions to the NN potential of particular (3q)(qq) components of the single-nucleon wave function, with specific baryon and meson quantum numbers, through the Wigner transforms of the resultant coupling...

Excitations of the Static Quark-antiquark System in Several Gauge

The spectrum of gluons in the presence of a static quark-antiquark pair is studied using Monte Carlo simulations on anisotropic space-time lattices. For very small quark-antiquark separations R, the level orderings and approximate degeneracies disagree with the expectations from an effective string theory. As the quarkantiquark separation R increases, a dramatic rearrangement of the energies oc...

Nuclear Physics A456 (1986) 669-700 North-Holland, Amsterdam NN TENSOR AND LS POTENTIALS IN A QUARK MODEL WITH QUARK-ANTIQUARK EXCITATIONS

A more detailed study is made of the NN interaction in a quark model in which the (qq) excitations inherent in the quark-gluon interaction are explicitly incorporated into the model space. A unified treatment for all types of exchange terms of the (3q)-(3q) to (3q)-(3q)(q$ coupling kernels is used to calculate the space parts of the full coupling kernels and their Wigner transforms in complete ...

NN Interaction in Chiral Constituent Quark Models

We review the actual state in the description of the NN interaction by means of chiral constituent quark models. We present a series of relevant features that are nicely explained within the quark model framework.

Quark - Antiquark Bound