Stopping power of an electron gas for antiprotons at intermediate velocities

Journal Article · Thu Apr 01 04:00:00 EST 1993 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.47.3050· OSTI ID:6653965

Nagy, I ^[1]; Echenique, P M ^[2]

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1. Quantum Theory Group, Institute of Physics, Technical University of Budapest, H-1521 Budapest (Hungary)
2. Departamento de Fisica, Facultad de Quimica, Universidad del Pais Vasco, Apartado 1072, San Sebastian 20080 (Spain)

The stopping power of antiprotons moving at energies up to 400 keV through a uniform zero-temperature electron gas is calculated within the framework of the kinetic theory. The momentum-transfer cross section required is determined with the aid of a parametric velocity-dependent scattering potential. A nonperturbative constraint, provided by the nuclear-cusp condition, is used to fix the parameter value. A comparison with the result of a quadratic-response-function approach is made. The calculated stopping powers are in good agreement with recent experimental predictions.

• OSTI ID: 6653965
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 47:4; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

663620* -- Physics of Radiations Other Than Neutrons-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANTIBARYONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
ANTIPROTONS
BARYONS
CROSS SECTIONS
ELECTRON GAS
ELECTRON-NUCLEON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EQUATIONS
FERMIONS
FLUIDS
GASES
HADRONS
INTERACTIONS
KEV RANGE
KINETIC EQUATIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MATTER
MOMENTUM TRANSFER
NUCLEI
NUCLEONS
PARTICLE INTERACTIONS
STOPPING POWER
TEMPERATURE ZERO K