Classical Trajectory Monte Carlo simulation of coincidence experiments in electron impact ionization of helium

K. Tőkési, Béla Paripás, Endre Kovács

Research output: Contribution to journalArticle

Abstract

The state-to-state (exchange) interference of the autoionizing resonances of helium is studied in (e,2e) experiments. These studies are disturbed by the coincidence events caused by the direct ionization, so their decrease is desirable. For this reason, to mimic the experimental observation, we performed four-body classical trajectory Monte Carlo calculations. The calculations were done for 93.15 eV primary energy, where the exchange interference of the 2s 2 ( 1 S) and 2p 2 ( 1 D) autoionizing states of helium is expected. The yields of non-coincidence and coincidence events detected in various combinations of scattering geometry were calculated and compared with the experimental observations.

Original languageEnglish
Article number84
JournalEuropean Physical Journal D
Volume73
Issue number4
DOIs
Publication statusPublished - Apr 1 2019

Fingerprint

electron impact
helium
trajectories
interference
ionization
simulation
geometry
scattering
energy

Keywords

  • Topical issue

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Classical Trajectory Monte Carlo simulation of coincidence experiments in electron impact ionization of helium. / Tőkési, K.; Paripás, Béla; Kovács, Endre.

In: European Physical Journal D, Vol. 73, No. 4, 84, 01.04.2019.

Research output: Contribution to journalArticle

@article{f237aaf5cfa144b3af4fb33118fc5ba8,
title = "Classical Trajectory Monte Carlo simulation of coincidence experiments in electron impact ionization of helium",
abstract = "The state-to-state (exchange) interference of the autoionizing resonances of helium is studied in (e,2e) experiments. These studies are disturbed by the coincidence events caused by the direct ionization, so their decrease is desirable. For this reason, to mimic the experimental observation, we performed four-body classical trajectory Monte Carlo calculations. The calculations were done for 93.15 eV primary energy, where the exchange interference of the 2s 2 ( 1 S) and 2p 2 ( 1 D) autoionizing states of helium is expected. The yields of non-coincidence and coincidence events detected in various combinations of scattering geometry were calculated and compared with the experimental observations.",
keywords = "Topical issue",
author = "K. Tők{\'e}si and B{\'e}la Parip{\'a}s and Endre Kov{\'a}cs",
year = "2019",
month = "4",
day = "1",
doi = "10.1140/epjd/e2019-90629-7",
language = "English",
volume = "73",
journal = "Zeitschrift fur Physik D-Atoms Molecules and Clusters",
issn = "1434-6060",
publisher = "Springer New York",
number = "4",

}

TY - JOUR

T1 - Classical Trajectory Monte Carlo simulation of coincidence experiments in electron impact ionization of helium

AU - Tőkési, K.

AU - Paripás, Béla

AU - Kovács, Endre

PY - 2019/4/1

Y1 - 2019/4/1

N2 - The state-to-state (exchange) interference of the autoionizing resonances of helium is studied in (e,2e) experiments. These studies are disturbed by the coincidence events caused by the direct ionization, so their decrease is desirable. For this reason, to mimic the experimental observation, we performed four-body classical trajectory Monte Carlo calculations. The calculations were done for 93.15 eV primary energy, where the exchange interference of the 2s 2 ( 1 S) and 2p 2 ( 1 D) autoionizing states of helium is expected. The yields of non-coincidence and coincidence events detected in various combinations of scattering geometry were calculated and compared with the experimental observations.

AB - The state-to-state (exchange) interference of the autoionizing resonances of helium is studied in (e,2e) experiments. These studies are disturbed by the coincidence events caused by the direct ionization, so their decrease is desirable. For this reason, to mimic the experimental observation, we performed four-body classical trajectory Monte Carlo calculations. The calculations were done for 93.15 eV primary energy, where the exchange interference of the 2s 2 ( 1 S) and 2p 2 ( 1 D) autoionizing states of helium is expected. The yields of non-coincidence and coincidence events detected in various combinations of scattering geometry were calculated and compared with the experimental observations.

KW - Topical issue

UR - http://www.scopus.com/inward/record.url?scp=85064331835&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85064331835&partnerID=8YFLogxK

U2 - 10.1140/epjd/e2019-90629-7

DO - 10.1140/epjd/e2019-90629-7

M3 - Article

AN - SCOPUS:85064331835

VL - 73

JO - Zeitschrift fur Physik D-Atoms Molecules and Clusters

JF - Zeitschrift fur Physik D-Atoms Molecules and Clusters

SN - 1434-6060

IS - 4

M1 - 84

ER -