Vibrational Excitation in Electron-CH4 Collisions: Exchange Interaction Effects.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F01%3A54020207" target="_blank" >RIV/61388955:_____/01:54020207 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Vibrational Excitation in Electron-CH4 Collisions: Exchange Interaction Effects.

Original language description

The vibrational excitations of all four normal modes of the methane molecule in collisions with low-energy electrons (E-coll < 15 eV) are computed within the adiabatic approximation for the nuclear motion and solving the quantum dynamics for the scattered electron. The non-local exchange forces are treated by a separable expansion and by a semiclassical local model and their effects on the vibrationally inelastic cross sections are examined. By comparing the (<nu>(1) + nu (3)) and the (nu (2) + nu (4))sums of the four vibrationally inelastic modes as two sets of ''''stretching'''' and ''''bending'''' modes, with existing experiments on the latter, we are able to show that both approaches produce rather good accord with the available data, while presenting differences in them. The local model for treating exchange, which affords a substantial reduction of computational time, is shown to reasonably well describe vibrational inelasticity.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CF - Physical chemistry and theoretical chemistry

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2001

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Physics. B

ISSN

0953-4075

e-ISSN

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Volume of the periodical

34

Issue of the periodical within the volume

N/A

Country of publishing house

GB - UNITED KINGDOM

Number of pages

19

Pages from-to

705-723

UT code for WoS article

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EID of the result in the Scopus database

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