Stopping characteristics for a slow antiproton

Journal Article · Sun Dec 01 04:00:00 EST 1991 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.44.12172· OSTI ID:5132497

Nagy, I; Arnau, A; Echenique, P M; Zaremba, E ^[1]

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1. Departamento de Fisica de Materiales, Facultad de Quimica, Universidad del Pais Vasco, Apartado 1072, San Sebastian 20080 (Spain)

The energy loss, straggling, and dynamic width of slow antiprotons passing through an electron gas have been evaluated within a scattering-theory approach to the stopping-power problem. The required effective scattering potential is obtained from both a self-consistent density-functional calculation and a pseudo-linear-response treatment of the screening nonlinearities. The two methods give similar results. Comparison of the examined quantities with the case of protons reveals a marked difference in the metallic-density range.

• OSTI ID: 5132497
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 44:22; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

665300* -- Interactions Between Beams & Condensed Matter-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMPLITUDES
ANTIBARYONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
ANTIPROTONS
BARYONS
ELECTRON GAS
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY LOSSES
FERMI LEVEL
FERMIONS
FLUIDS
FUNCTIONS
GASES
HADRONS
LOSSES
MATTER
NUCLEI
NUCLEONS
RESPONSE FUNCTIONS
SCATTERING AMPLITUDES
SCREENING
STOPPING POWER