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Abstract:

We calculate the nonlinear effects that appear at the level of the stopping cross section when heavy bare projectiles collide with both atomic hydrogen and a free electron gas. Calculations are carried out by using distorted-wave methods. For hydrogen targets we employ the continuum-distorted-wave eikonal initial-state approximation, while for the free electron gas we use the Coulomb-Lindhard approach. Results are compared with exact results for the quantum harmonic oscillator target. Ratios to the first-order stopping are analyzed in detail and their structures are interpreted in terms of Padé approximants. We also investigate the dependency of the stopping ratios on the impact parameter. © 2005 The American Physical Society.

Registro:

Documento: Artículo
Título:Comparative studies of the nonlinear effects occurring when highly charged projectiles collide with hydrogen, a free electron gas, and a harmonic oscillator
Autor:Miraglia, J.E.; Gravielle, M.S.
Filiación:Instituto de Astronomía y Física del Espacio, Casilla de Correo 67, Sucursal 28, 1428 Buenos Aires, Argentina
Palabras clave:Harmonic oscillator; Hydrogen targets; Approximation theory; Electron gas; Oscillators (electronic); Parameter estimation; Projectiles
Año:2005
Volumen:72
Número:4
DOI: http://dx.doi.org/10.1103/PhysRevA.72.042902
Título revista:Physical Review A - Atomic, Molecular, and Optical Physics
Título revista abreviado:Phys Rev A
ISSN:10502947
CODEN:PLRAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v72_n4_p_Miraglia

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Citas:

---------- APA ----------
Miraglia, J.E. & Gravielle, M.S. (2005) . Comparative studies of the nonlinear effects occurring when highly charged projectiles collide with hydrogen, a free electron gas, and a harmonic oscillator. Physical Review A - Atomic, Molecular, and Optical Physics, 72(4).
http://dx.doi.org/10.1103/PhysRevA.72.042902
---------- CHICAGO ----------
Miraglia, J.E., Gravielle, M.S. "Comparative studies of the nonlinear effects occurring when highly charged projectiles collide with hydrogen, a free electron gas, and a harmonic oscillator" . Physical Review A - Atomic, Molecular, and Optical Physics 72, no. 4 (2005).
http://dx.doi.org/10.1103/PhysRevA.72.042902
---------- MLA ----------
Miraglia, J.E., Gravielle, M.S. "Comparative studies of the nonlinear effects occurring when highly charged projectiles collide with hydrogen, a free electron gas, and a harmonic oscillator" . Physical Review A - Atomic, Molecular, and Optical Physics, vol. 72, no. 4, 2005.
http://dx.doi.org/10.1103/PhysRevA.72.042902
---------- VANCOUVER ----------
Miraglia, J.E., Gravielle, M.S. Comparative studies of the nonlinear effects occurring when highly charged projectiles collide with hydrogen, a free electron gas, and a harmonic oscillator. Phys Rev A. 2005;72(4).
http://dx.doi.org/10.1103/PhysRevA.72.042902