Scattering of slow electrons by inert gas atoms. Effective polarization potential method

Yurova, I. Yu.; Kuverova, V. V.

doi:10.1134/s1990793114010175

Cited by 2 publications

(7 citation statements)

References 18 publications

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“…accounts for the (adiabatic) polarization or distortion of the core electron by the incident charged particle [27,34]. Its use is based on the idea that the electric field of the projectile at distance R gives rise to an instantaneous (first-order) distortion of the core-electron orbital, thereby modifying the interaction of those electrons with the projectile.…”

Section: Theorymentioning

confidence: 99%

“…Its use is based on the idea that the electric field of the projectile at distance R gives rise to an instantaneous (first-order) distortion of the core-electron orbital, thereby modifying the interaction of those electrons with the projectile. Polarization potentials have been used in many studies up to fairly high projectile energies [28,29,[34][35][36][37]. No exact form of V pol is available at short distances, therefore, different types of analytical approximations are available, and we consider the following frequently used forms:…”

Section: Theorymentioning

confidence: 99%

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Theoretical investigation of the fully differential cross sections for single ionization of He in collisions with 75-keV protons

2019

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We present a theoretical investigation of the single ionization of He in collisions with H + projectile ions at 75-keV impact energy. Using the frameworks of the independent-electron model and the impact parameter picture, fully differential cross sections (FDCS) are evaluated in the continuum distorted-wave with eikonal initial-state approximation (CDW-EIS). Comparisons are made to the recent measurements of Schulz et al. [Phys. Rev. A 73, 062704 (2006)] and Arthanayaka et al. [J. Phys. B: At. Mol. Opt. Phys. 49, 13LT02 (2016)]. Strong influence of the internuclear interaction and effects of target core polarization due to the presence of the projectile ion are observed. Comparing the present results to experimental data and other theoretical predictions, it has been found that the CDW-EIS method qualitatively reproduces structures in the FDCS. Projectile coherence effects are investigated by representing the projectile beam as a Gaussian wave packet. Evidence of interference effects due to projectile-electron and projectile-target core interactions are discussed and the need for further theoretical investigations is proposed.

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Section: Theorymentioning

confidence: 99%

Section: Theorymentioning

confidence: 99%

Theoretical investigation of the fully differential cross sections for single ionization of He in collisions with 75-keV protons

2019

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“…V pol (R) in (3) accounts for the (adiabatic) polarization or distortion of the core electrons by the incident charged particle [17,21]. Its use is based on the idea that the electric field of the projectile at distance R gives rise to an instantaneous (first-order) distortion of the coreelectron orbitals, thereby modifying the interaction of those electrons with the projectile.…”

Section: Theorymentioning

confidence: 99%

“…[ [18][19][20][21] and references therein. However, only little is known about the effects of V pol in heavy particle collisions, especially at high projectile energies.…”

Section: Introductionmentioning

confidence: 99%

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Differential cross sections for single ionization of Li in collisions with fast protons andO8+ions

2014

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We study the process of single ionization of Li in collisions with H + and O 8+ projectile ions at 6MeV and 1.5-MeV/amu impact energies, respectively. Using the frameworks of the independentelectron model and the impact parameter picture, fully (FDCS) and doubly (DDCS) differential cross sections are evaluated in the continuum distorted-wave with eikonal initial-state approxima- respectively. For O 8+ impact inclusion of the heavy particle (NN) interaction in the calculations is crucial and effects of polarization due to the presence of the projectile ion have also to be taken into account for getting very good agreement with the measured data. Our calculation reproduces the satellite peak structure seen in the FDCS for the Li(2s) measurement, which we explain as being formed by a combination of the binary and NN interactions.

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Scattering of slow electrons by inert gas atoms. Effective polarization potential method

Cited by 2 publications

References 18 publications

Theoretical investigation of the fully differential cross sections for single ionization of He in collisions with 75-keV protons

Theoretical investigation of the fully differential cross sections for single ionization of He in collisions with 75-keV protons

Differential cross sections for single ionization of Li in collisions with fast protons andO8+ions

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