Next Article in Journal
Applications of Machine Learning and Neural Networks for FT-ICR Mass Measurements with SIPT
Next Article in Special Issue
Fragmentation of Multiply Charged C10H8 Isomers Produced in keV Range Proton Collision
Previous Article in Journal
Single Ionization of Helium by Protons of Various Energies in the Parabolic Quasi-Sturmians Approach
Previous Article in Special Issue
Density Functional Treatment of Photoionization of Sodium Clusters: Effects of Cluster Size and Exchange–Correlation Framework
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Atoms
Volume 11
Issue 10
10.3390/atoms11100125
atoms-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Quadrupole Effects in the Photoionisation of Sodium 3s in the Vicinity of the Dipole Cooper Minimum

by
Nishita M. Hosea
1,
Jobin Jose
2,
Hari R. Varma
1,*,
Pranawa C. Deshmukh
3,4 and
Steven T. Manson
5
1
School of Physical Sciences, Indian Institute of Technology Mandi, Kamand 175075, India
2
Department of Physics, Indian Institute of Technology Patna, Bihta 801103, India
3
Department of Physics and CAMOST, Indian Institute of Technology Tirupati, Tirupati 517619, India
4
Department of Physics, Dayananda Sagar University, Bengaluru 560078, India
5
Department of Physics and Astronomy, Georgia State University, Atlanta, GA 30303, USA
*
Author to whom correspondence should be addressed.
Atoms 2023, 11(10), 125; https://doi.org/10.3390/atoms11100125
Submission received: 8 August 2023 / Revised: 19 September 2023 / Accepted: 21 September 2023 / Published: 28 September 2023
(This article belongs to the Special Issue Photon and Particle Impact Spectroscopy and Dynamics of Atoms, Molecules, and Clusters)
Browse Figures
Versions Notes

Abstract

A procedure to obtain relativistic expressions for photoionisation angular distribution parameters using the helicity formulation is discussed for open-shell atoms. Electric dipole and quadrupole transition matrix elements were considered in the present work, to study the photoionisation dynamics of the 3s electron of the sodium atom in the vicinity of the dipole Cooper minimum. We studied dipole–quadrupole interference effects on the photoelectron angular distribution in the region of the dipole Cooper minimum. Interference with quadrupole transitions was found to alter the photoelectron angular distribution, even at rather low photon energies. The initial ground and final ionised state discrete wavefunctions of the atom were obtained in the present work using GRASP, and we employed RATIP with discrete wavefunctions, to construct continuum wavefunctions and to calculate transition amplitudes, total cross-sections and angular distribution asymmetry parameters.
Keywords: non-dipole interactions; photoelectron angular distributions; open-shell atomic systems; Cooper minimum; GRASP; RATIP non-dipole interactions; photoelectron angular distributions; open-shell atomic systems; Cooper minimum; GRASP; RATIP

Share and Cite

MDPI and ACS Style

Hosea, N.M.; Jose, J.; Varma, H.R.; Deshmukh, P.C.; Manson, S.T. Quadrupole Effects in the Photoionisation of Sodium 3s in the Vicinity of the Dipole Cooper Minimum. Atoms 2023, 11, 125. https://doi.org/10.3390/atoms11100125

AMA Style

Hosea NM, Jose J, Varma HR, Deshmukh PC, Manson ST. Quadrupole Effects in the Photoionisation of Sodium 3s in the Vicinity of the Dipole Cooper Minimum. Atoms. 2023; 11(10):125. https://doi.org/10.3390/atoms11100125

Chicago/Turabian Style

Hosea, Nishita M., Jobin Jose, Hari R. Varma, Pranawa C. Deshmukh, and Steven T. Manson. 2023. "Quadrupole Effects in the Photoionisation of Sodium 3s in the Vicinity of the Dipole Cooper Minimum" Atoms 11, no. 10: 125. https://doi.org/10.3390/atoms11100125

APA Style

Hosea, N. M., Jose, J., Varma, H. R., Deshmukh, P. C., & Manson, S. T. (2023). Quadrupole Effects in the Photoionisation of Sodium 3s in the Vicinity of the Dipole Cooper Minimum. Atoms, 11(10), 125. https://doi.org/10.3390/atoms11100125

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop