Extended Glauber Model of Antiproton-Nucleus Annihilation for All Energies and Mass Numbers

Abstract

Previous analytical formulas in the Glauber model for high-energy nucleus-nucleus collisions developed by Wong are utilized and extended to study antiproton-nucleus annihilations for both high and low energies, after taking into account the effects of Coulomb and nuclear interactions, and the change of the antiproton momentum inside a nucleus. The extended analytical formulas capture the main features of the experimental antiproton-nucleus annihilation cross sections for all energies and mass numbers. At high antiproton energies, they exhibit the granular property for the lightest nuclei and the black-disk limit for the heavy nuclei. At low antiproton energies, they display the effect of the antiproton momentum increase due to the nuclear interaction for the light nuclei, and the effect of the magnification due to the attractive Coulomb interaction for the heavy nuclei.

12 pages, 5 figures

References in corpus (5)

• Observation of an anomalous positron abundance in the cosmic radiation
• Technical Design Report for the: PANDA Straw Tube Tracker
• Energy-dependent partial-wave analysis of all antiproton-proton scattering data below 925 MeV/c
• Reaction Cross Section in Heavy-Ion Collisions
• Stability of Matter-Antimatter Molecules

Cited by in corpus (6)

• Production of ${\Lambda }_c^{+}$ hypernuclei in antiproton - nucleus collisions
• Elastic scattering, polarization and absorption of relativistic antiprotons on nuclei
• Optical model potential analysis of $\bar{n}A$ and $nA$ interactions
• Nuclear annihilation by antinucleons
• $\bar{D}D$ meson pair production in antiproton-nucleus collisions
• Pocket resonances in low-energy antineutrons reactions with nuclei