Stopping power of an electron gas for a slow antiproton

Journal Article · Wed Aug 01 00:00:00 EDT 1990 · Physical Review, A (General Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevA.42.1806· OSTI ID:6602856

Nagy, I; Apagyi, B ^[1]; Ladanyi, K ^[2]

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1. Quantum Theory Group, Institute of Physics, Technical University of Budapest, H-1521 Budapest (Hungary)
2. Institute for Theoretical Physics, Roland Eoetvoes University, H-1088 Budapest (Hungary)

The screening of a slow antiproton in an electron gas is discussed as an analogy of dielectric response formulation. A simple parametric form of the dielectric function is proposed that leads to analytic expressions for the effective potential and induced hole density. The parameter is fixed via the cusp condition for the total electron density at the position of the probe charge. The stopping power is calculated by making use of the transport cross section. The results are in fair agreement with those given by a recent self-consistent calculation.

• OSTI ID: 6602856
• Journal Information: Physical Review, A (General Physics); (USA), Vol. 42:3; ISSN 0556-2791
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANTIPROTONS
STOPPING POWER
ELECTRON GAS
CHARGED-PARTICLE TRANSPORT
COLLECTIVE EXCITATIONS
ENERGY LOSSES
SCREENING
ANTIBARYONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
BARYONS
ELEMENTARY PARTICLES
ENERGY-LEVEL TRANSITIONS
EXCITATION
FERMIONS
FLUIDS
GASES
HADRONS
LOSSES
NUCLEI
NUCLEONS
RADIATION TRANSPORT
654001* - Radiation & Shielding Physics- Radiation Physics
Shielding Calculations & Experiments