Abstract
In this work we use the quark degrees of freedom in a nucleon to calculate a nucleon-antinucleon annihilation potential. The range of this annihilation is determined by the long-range confinement forces giving the quark wave functions which also reproduce the nucleon charge radius. We find that NN\ifmmode\bar\else\textasciimacron\fi{} scattering is sensitive to the annihilation mainly between 0.5 and 2.0 fm. Our annihilation model shows that the dominant annihilation contribution to NN\ifmmode\bar\else\textasciimacron\fi{} scattering comes from qqq\ifmmode\bar\else\textasciimacron\fi{} q\ifmmode\bar\else\textasciimacron\fi{} multigluon intermediate states and that the intermediate qq\ifmmode\bar\else\textasciimacron\fi{} multigluon as well as pure gluonic states are less important for NN\ifmmode\bar\else\textasciimacron\fi{} scattering.
Published Version
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