Charge exchange in energetic ion-atom collisions

Dewangan, D P; Eichler, Jörg

doi:10.1016/0370-1573(94)90012-4

Cited by 147 publications

(96 citation statements)

References 206 publications

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“…Prior CBDW-3B DCS for all considered impact energies show a sharp minimum after the kinematical peak. In contrast to the theoretical prediction of such a sharp dip in the first-order perturbative approaches for different charge-exchange reactions [6,23,25,27,28], the dip is called "unphysical" in the literature since it is not observed in the experimental measurements [6,[29][30][31][32]. For lower energies the post curves fall almost monotonically, hence this minimum is not present in these curves.…”

Section: Cbdw-3b (Post) Cbdw-3b (Prior)mentioning

confidence: 58%

“…In a three-body model, the three inter-related quantities, i.e. the effective potential, the one-electron orbital and the orbital energy of the active electron should be known in order to give a full description of the electron in its initial and final states [6]. Although, there is no way to derive the unique values of these three inter-related quantities, we have used a standard independent-electron model, in which the electron is assumed to move in an averaged Coulomb potential field with an effective nuclear charge Z T .…”

Section: Resultsmentioning

confidence: 99%

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K-shell single-electron capture in collision of fast protons with multi-electron atoms

Ghanbari-Adivi

Velayati

2013

Open Physics

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Abstract:Single-electron capture from the K shell of atomic targets by impact of protons at moderate and high energies has been studied using a first-order three-body Coulomb-Born continuum distorted wave approximation. The applied formalism satisfies the correct Coulomb boundary conditions. Single-zeta RoothaanHartree-Fock wave functions are used to describe the initial electronic bound state of the exchanged electron. Both differential and integral capture cross sections are calculated for impact of protons on carbon, nitrogen, oxygen, neon and argon atoms. The results are compared with the available measurements and other theories. The agreement between the calculations and experimental data is remarkable.PACS (

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Section: Cbdw-3b (Post) Cbdw-3b (Prior)mentioning

confidence: 58%

Section: Resultsmentioning

confidence: 99%

K-shell single-electron capture in collision of fast protons with multi-electron atoms

Ghanbari-Adivi

Velayati

2013

Open Physics

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“…Within the framework of the time-dependent distorted wave formalism [28], the BSB-V transition amplitude for the electronic transition Φ i → Φ f reads [17]:…”

Section: Theoretical Methodsmentioning

confidence: 99%

Induced-field enhancement of band-structure effects in photoelectron spectra from Al surfaces by ultrashort laser pulses

Rubiano

Picca

Mitnik³

et al. 2017

Phys. Rev. A

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The influence of the crystallographic orientation of a typical metal surface, like aluminum, on electron emission spectra produced by grazing incidence of ultrashort laser pulses is investigated by using the band-structure-based-Volkov (BSB-V) approximation. The present version of the BSB-V approach includes not only a realistic description of the surface interaction, accounting for band structure effects, but also effects due to the induced potential that originates from the collective response of valence-band electrons to the external electromagnetic field. The model is applied to evaluate differential electron emission probabilities from the valence band of Al (100) and Al(111). For both crystallographic orientations, the contribution of partially occupied surface electronic states and the influence of the induced potential are separately analyzed as a function of the laser carrier frequency. We found that the induced potential strongly affects photoelectron emission distributions, opening a window to scrutinize band structure effects.

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“…Due to the singular nature of the latter, calculation of such terms is very difficult (this is particularly true if the rescattering particles have charges of opposite sign, because of the infinity of bound states). Indeed, the lack of applications of Faddeev-type approaches to atomic reactions is generally attributed to this fact [24].…”

Section: Few-body Approach To the Energetic Atomic Collision Hmentioning

confidence: 99%

“…Hence, though they generally provide a good description of either electron exchange or (in)elastic cross sections, they are frequently unable to describe the other reaction. For recent reviews I refer to [24,25].…”

Section: Few-body Approach To the Energetic Atomic Collision Hmentioning

confidence: 99%

The Few-Body Coulombian Problem

Alt

1999

Few-Body Problems in Physics ’98

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Abstract. Recent advances in the treatment of scattering of charged composite particles are reviewed. In a first part I report on developments of the theory. Specifically I describe the recent completion of the derivation of the co-ordinate space asymptotic behaviour of the wave function for three charged particles in the continuum. This knowledge is increasingly being made use of in attempts to 'derive' three-Coulomb particle wave functions to be used in all of configuration space which are solutions of the Schrödinger equation, though not everywhere but at least in one or preferably all of the asymptotic regions. Their practical application in approximate calculations of ionisation and breakup processes is pointed out. The asymptotic three-charged particle wave functions find further use in investigations of asymptotic and analytic properties of matrix elements of the three-body Coulomb resolvent. An important example is the nonperturbative derivation, valid for all energies, of the large-distance behaviour of the optical potential. In the second part I describe a renewed attempt to establish the few-body approach as a valuable tool for calculating (energetic) atomic collision processes. At the end I briefly touch upon the recent successful above-breakup-threshold calculation of proton-deuteron elastic scattering for a realistic potential.

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Charge exchange in energetic ion-atom collisions

Cited by 147 publications

References 206 publications

K-shell single-electron capture in collision of fast protons with multi-electron atoms

K-shell single-electron capture in collision of fast protons with multi-electron atoms

Induced-field enhancement of band-structure effects in photoelectron spectra from Al surfaces by ultrashort laser pulses

The Few-Body Coulombian Problem

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