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Insights from the zero-angular-momentum wave in single and double ionization of He by fast electrons
(American Physical Society, 2014-01)
In a recent contribution our group proposed a perturbative approach to deal with the open problem of double ionization of helium by electron impact. The goal of this work is to delve into the physics of the scattering ...
Double ionization of helium by ion impact: second Born order treatment at the fully differential level
(Institute of Physics, 2015-01)
In this work, a theoretical study of the double ionization of He by ion impact at the fully differential level is presented. Emphasis is made in the role played by the projectile in the double emission process depending ...
Differential electron emission in the ionization of Ne and Xe atoms under fast bare carbon ion impact
(IOP Publishing, 2015-06)
Measurement of the energy and angular distributions of the double differential cross section (DDCS) of electron emission from Ne and Xe atoms in collision with 5 MeV u-1 bare carbon ions is reported. This study aimed to ...
Effective momenta approach for the 4-body Coulomb problem
(American Physical Society, 2013-02)
We propose approximate separable solutions for the Schrödinger equation corresponding to the four-body Coulomb problem. By exploring several asymptotic limits, we find configurations where the nondiagonal terms of the ...
Estudio de procesos de ionización múltiple en capas atómicas internas mediante espectroscopía de rayos X
(2016)
Conjuntamente con las líneas de diagrama presentes en un espectro de emisión de rayos x, existen líneas de menor intensidad llamadas líneas satélites. En esta tesis se realizó un estudio de este espectro satélite en muestras ...
S-model calculations for high-energy-electron-impact double ionization of helium
(American Physical Society, 2013-04-29)
In this paper the double ionization of helium by high-energy electron impact is studied. The corresponding four-body Schr ̈ dinger equation is transformed into a set of driven equations containing successive orders in o ...
Angular distributions for photo-double-ionization of the He isoelectronic sequence
(Springer, 2003-12)
We describe the three-body final state resulting from the photo-double-ionization (PDI) of two-electron ionic atoms by a modified C3 wave, denoted SC3. This continuum wave function accounts for the nuclear dynamical screening ...
Ionization of atomic hydrogen by electrons: the role of the contributions of the pseudo-states in the second Born approximation
(IOP Publishing, 2013-07-05)
The second Born approximation is often used, particularly when we study double processes such as the ionization?excitation and the double ionization of atoms and molecules by charged particles. But when we apply this ...
Kinetic correlation in the final-state wave function in photo-double-ionization of He
(American Physical Society, 2003-06)
We evaluate the triply differential cross section (TDCS) for photo-double-ionization of helium. We use a final continuum wave function which correlates the motion of the three particles, through an expansion in products ...
Theoretical study of the double ionization of the He isoelectronic sequence by protons and antiprotons
(Elsevier Science, 2012-07)
We evaluate the fully differential cross sections (FDCS) for the double ionization of the He-isoelectronic sequence by proton and antiproton impact. We use a distorted wave model recently introduced by the authors based ...