Electron collisions with cyanoacetylene HC3N: Vibrational excitation and dissociative electron attachment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F18%3A00497637" target="_blank" >RIV/61388955:_____/18:00497637 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevA.98.052708" target="_blank" >http://dx.doi.org/10.1103/PhysRevA.98.052708</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevA.98.052708" target="_blank" >10.1103/PhysRevA.98.052708</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electron collisions with cyanoacetylene HC3N: Vibrational excitation and dissociative electron attachment

Popis výsledku v původním jazyce

We experimentally probe electron collisions with HC3N in the energy range from 0 to 10 eV with the focus on vibrational excitation and dissociative electron attachment. The vibrational excitation cross sections show a number of resonances which are mode specific: the two dominant π∗ resonances are visible in the excitation of all the vibrational modes. However, broad σ∗ resonances are visible only in certain bond-stretching vibrational modes. The lower π∗ resonance shows a pronounced boomerang structure. Since it overlaps with the threshold peak originating from a long-range electron-molecule interaction, the interference pattern is rather unusual. Somewhat surprisingly, the boomerang structure is visible also in the elastic scattering cross section. The dissociative electron attachment cross sections agree qualitatively with the data of Gilmore and Field [J. Phys. B 48, 035201 (2015)]. However, approximately a factor of two difference is found in the absolute values.

Název v anglickém jazyce

Electron collisions with cyanoacetylene HC3N: Vibrational excitation and dissociative electron attachment

Popis výsledku anglicky

We experimentally probe electron collisions with HC3N in the energy range from 0 to 10 eV with the focus on vibrational excitation and dissociative electron attachment. The vibrational excitation cross sections show a number of resonances which are mode specific: the two dominant π∗ resonances are visible in the excitation of all the vibrational modes. However, broad σ∗ resonances are visible only in certain bond-stretching vibrational modes. The lower π∗ resonance shows a pronounced boomerang structure. Since it overlaps with the threshold peak originating from a long-range electron-molecule interaction, the interference pattern is rather unusual. Somewhat surprisingly, the boomerang structure is visible also in the elastic scattering cross section. The dissociative electron attachment cross sections agree qualitatively with the data of Gilmore and Field [J. Phys. B 48, 035201 (2015)]. However, approximately a factor of two difference is found in the absolute values.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Physical Review A

ISSN

2469-9926

e-ISSN

—

Svazek periodika

98

Číslo periodika v rámci svazku

NOV 2018

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

—

Kód UT WoS článku

000451573500007

EID výsledku v databázi Scopus

2-s2.0-85057588324