Nucleon and antinucleon annihilation cross section at nonrelativistic energies
Ksenzov V.G., Kudroyavtsev A.E.
It is shown for the low-energy NN interaction, within the framework of the coupled-channel scheme, that in the case of a small annihilation radius ra~rnN ~*~0.2 F and strong attraction it is possible to obtain a consistent description of the small widths of the quasinuclear mesons (Γ—10-30 MeV) and the large annihilation cross sections. The slow NN annihilation cross section deviates in this case from the 1/v law. The character of the deviation depends on the potential NN interaction.