The antinucleon-nucleon interaction at low energy : annihilation dynamics

C. Batty; E. Klempt; J.-M. Richard (LPSC)

The antinucleon-nucleon interaction at low energy : annihilation dynamics

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arxiv hep-ex/0501020 v1 pith:RYUCGKGG submitted 2005-01-10 hep-ex hep-phnucl-th

E. Klempt , C. Batty , J.-M. Richard (LPSC) This is my paper

classification hep-exhep-phnucl-th

keywords annihilationdynamicsinteractionmodesallowedanalysesantinucleon-nucleonantiproton-proton

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The general properties of antiproton-proton annihilation at rest are presented, with special focus on the two-meson final states. The data exhibit remarkable dynamical selection rules : some allowed annihilation modes are suppressed by one order of magnitude with respect to modes of comparable phase-space. Various phenomenological analyses are reviewed, based on microscopic quark dynamics or symmetry considerations. The role of initial- and final-state interaction is also examined.

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