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Lozhkin, K.; Fastrup, B.; González, A.D.; Horsdal-Pedersen, E.; Rodríguez, V.D. "Electron and recoil-ion momenta in single ionization of He by protons" (1998) Journal of Physics B: Atomic, Molecular and Optical Physics. 31(22):4961-4973
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Abstract:

For single ionization of He atoms in collisions with fast protons we have measured and calculated, as a function of the scattering of the proton, differential reaction cross sections and mean values of the He+ recoil momentum projected onto the transverse direction defined by the collision plane and the plane perpendicular to the proton impact velocity (the mean transverse momentum). The calculations were performed in the continuum distorted-wave eikonal initial-state (CDW-EIS) approximation. The partitioning, at a fixed scattering angle φ, of the total transverse recoil momentum into two mean transverse momenta, one carried by the free electron and the other by the remaining ion, is almost independent of the impact energy (250, 500 and 1000 keV). At φ > 1.5 mrad the mean transverse electronic momentum goes to zero, but for φ < 1.5 mrad the fraction rises smoothly and reaches 80% near 0.4 mrad. The present experimental cross sections and transverse recoil momenta are in good agreement with CDW-EIS results including the internuclear interaction.

Registro:

Documento: Artículo
Título:Electron and recoil-ion momenta in single ionization of He by protons
Autor:Lozhkin, K.; Fastrup, B.; González, A.D.; Horsdal-Pedersen, E.; Rodríguez, V.D.
Filiación:Ioffe Physical Technical Institute, Academy of Sciences of Russia, St Petersburg 194021, Russian Federation
Institute of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C, Denmark
Centro Atómico Bariloche, Instituto Balseiro, Comn. Nac. de Ener. Atómica, 8400-Bariloche, Argentina
Departamento de Física, Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428-Buenos Aires, Argentina
Dept. of Pure and Applied Physics, Queen's University of Belfast, Belfast BT7 INN, United Kingdom
Palabras clave:Approximation theory; Computational methods; Ionization of gases; Protons; Continuum distorted-wave eikonal initial-state approximation; Mean transverse electronic momentum; Transverse recoil momentum; Helium
Año:1998
Volumen:31
Número:22
Página de inicio:4961
Página de fin:4973
DOI: http://dx.doi.org/10.1088/0953-4075/31/22/008
Título revista:Journal of Physics B: Atomic, Molecular and Optical Physics
Título revista abreviado:J Phys B At Mol Opt Phys
ISSN:09534075
CODEN:JPAPE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09534075_v31_n22_p4961_Lozhkin

Referencias:

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Citas:

---------- APA ----------
Lozhkin, K., Fastrup, B., González, A.D., Horsdal-Pedersen, E. & Rodríguez, V.D. (1998) . Electron and recoil-ion momenta in single ionization of He by protons. Journal of Physics B: Atomic, Molecular and Optical Physics, 31(22), 4961-4973.
http://dx.doi.org/10.1088/0953-4075/31/22/008
---------- CHICAGO ----------
Lozhkin, K., Fastrup, B., González, A.D., Horsdal-Pedersen, E., Rodríguez, V.D. "Electron and recoil-ion momenta in single ionization of He by protons" . Journal of Physics B: Atomic, Molecular and Optical Physics 31, no. 22 (1998) : 4961-4973.
http://dx.doi.org/10.1088/0953-4075/31/22/008
---------- MLA ----------
Lozhkin, K., Fastrup, B., González, A.D., Horsdal-Pedersen, E., Rodríguez, V.D. "Electron and recoil-ion momenta in single ionization of He by protons" . Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 31, no. 22, 1998, pp. 4961-4973.
http://dx.doi.org/10.1088/0953-4075/31/22/008
---------- VANCOUVER ----------
Lozhkin, K., Fastrup, B., González, A.D., Horsdal-Pedersen, E., Rodríguez, V.D. Electron and recoil-ion momenta in single ionization of He by protons. J Phys B At Mol Opt Phys. 1998;31(22):4961-4973.
http://dx.doi.org/10.1088/0953-4075/31/22/008