Stopped Anti-Protons

Stopped anti-protons are captured in H.
  • Data references: C. Amsler, Rev. Mod. Phys. 70, 1293 (1998); C. Amsler and F. Myher, Ann. Rev. Nucl. Part. Sci. 41, 219 (1991).

Simulation Conditions

  • Geant4 version: 8.1
  • Models: CHIPS

Comments

  • Charged pion production: CHIPS model agrees well with data above 0.15 GeV/c) pion momentum, but over-estimates by up to a factor of 10 at 0.05 GeV/c).
  • Pion multiplicity: good agreement except for multiplicity 2 where the model over-estimates by a factor of 3.

Plots

anti-protons stopping in H: charged pion production

multiplicities from anti-protons stopping in H