Abstract:
We evaluate the [Formula Presented]-wave Jost function for the polarization potential and calculate its effective range expansion for [Formula Presented] up to the order [Formula Presented] We investigate not only the phase but also the modulus of the Jost function, generalizing previous works for the expansion up to the order [Formula Presented] of the s-wave phase shift. We discuss the validity domain of this generalized expansion for the interaction of an electron with a Helium atom in any of its three long-lived He states, i.e., [Formula Presented] [Formula Presented] and [Formula Presented] Even though this expansion is shown to be appropriate for most of the applications in electron-atom collisions, we propose here a more precise and simpler approach that provides much better results in a broader energy range when comparing with elaborated ab initio calculations. © 2002 The American Physical Society.
Registro:
Documento: |
Artículo
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Título: | Threshold behavior of the Jost function for the atomic polarization potential |
Autor: | Macri, P.A.; Barrachina, R.O. |
Filiación: | Instituto de Astronomía y Física del Espacio, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Casilla de Correo 67, Sucursal 28, Buenos Aires, 1428, Argentina Comisión Nacional de Energía Atómica, Centro Atómico Bariloche and Instituto Balseiro, Bariloche, 8400, Argentina
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Año: | 2002
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Volumen: | 65
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Número: | 6
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Página de inicio: | 7
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DOI: |
http://dx.doi.org/10.1103/PhysRevA.65.062718 |
Título revista: | Physical Review A - Atomic, Molecular, and Optical Physics
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Título revista abreviado: | Phys Rev A
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ISSN: | 10502947
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v65_n6_p7_Macri |
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Citas:
---------- APA ----------
Macri, P.A. & Barrachina, R.O.
(2002)
. Threshold behavior of the Jost function for the atomic polarization potential. Physical Review A - Atomic, Molecular, and Optical Physics, 65(6), 7.
http://dx.doi.org/10.1103/PhysRevA.65.062718---------- CHICAGO ----------
Macri, P.A., Barrachina, R.O.
"Threshold behavior of the Jost function for the atomic polarization potential"
. Physical Review A - Atomic, Molecular, and Optical Physics 65, no. 6
(2002) : 7.
http://dx.doi.org/10.1103/PhysRevA.65.062718---------- MLA ----------
Macri, P.A., Barrachina, R.O.
"Threshold behavior of the Jost function for the atomic polarization potential"
. Physical Review A - Atomic, Molecular, and Optical Physics, vol. 65, no. 6, 2002, pp. 7.
http://dx.doi.org/10.1103/PhysRevA.65.062718---------- VANCOUVER ----------
Macri, P.A., Barrachina, R.O. Threshold behavior of the Jost function for the atomic polarization potential. Phys Rev A. 2002;65(6):7.
http://dx.doi.org/10.1103/PhysRevA.65.062718