Dominance of correlation and relativistic effects on photodetachment time delay well above threshold
Abstract
In this work, Wigner time delay in photodetachment from the and subshells of has been studied in the vicinity of the and thresholds, using the relativistic random phase approximation (RRPA). The results show time delay spectra dominated by many-body correlations along with very complicated dependence on the energy over a broad spectral range. In addition, the time delay spectra of the two spin-orbit split subshells differ significantly from one another, thereby revealing the importance of relativistic effects even in the case of a low- system.
- Authors:
-
- Indian Inst. of Technology (IIT), Madras (India)
- Indian Inst. of Technology Tirupati (India); Indian Inst. of Science Education and Research Tirupati (India)
- Australian National Univ., Canberra, ACT (Australia)
- Georgia State Univ., Atlanta, GA (United States)
- Publication Date:
- Research Org.:
- Georgia State Univ., Atlanta, GA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division
- OSTI Identifier:
- 1609426
- Alternate Identifier(s):
- OSTI ID: 1546252
- Grant/Contract Number:
- FG02-03ER15428
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review A
- Additional Journal Information:
- Journal Volume: 99; Journal Issue: 6; Journal ID: ISSN 2469-9926
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 74 ATOMIC AND MOLECULAR PHYSICS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Optics; Physics
Citation Formats
Saha, Soumyajit, Deshmukh, Pranawa C., Kheifets, Anatoli S., and Manson, Steven T. Dominance of correlation and relativistic effects on photodetachment time delay well above threshold. United States: N. p., 2019.
Web. doi:10.1103/physreva.99.063413.
Saha, Soumyajit, Deshmukh, Pranawa C., Kheifets, Anatoli S., & Manson, Steven T. Dominance of correlation and relativistic effects on photodetachment time delay well above threshold. United States. https://doi.org/10.1103/physreva.99.063413
Saha, Soumyajit, Deshmukh, Pranawa C., Kheifets, Anatoli S., and Manson, Steven T. Mon .
"Dominance of correlation and relativistic effects on photodetachment time delay well above threshold". United States. https://doi.org/10.1103/physreva.99.063413. https://www.osti.gov/servlets/purl/1609426.
@article{osti_1609426,
title = {Dominance of correlation and relativistic effects on photodetachment time delay well above threshold},
author = {Saha, Soumyajit and Deshmukh, Pranawa C. and Kheifets, Anatoli S. and Manson, Steven T.},
abstractNote = {In this work, Wigner time delay in photodetachment from the 3p3/2 and 3p1/2 subshells of Cl- has been studied in the vicinity of the 2p3/2 and 2p1/2 thresholds, using the relativistic random phase approximation (RRPA). The results show time delay spectra dominated by many-body correlations along with very complicated dependence on the energy over a broad spectral range. In addition, the time delay spectra of the two spin-orbit split 3p subshells differ significantly from one another, thereby revealing the importance of relativistic effects even in the case of a low-Z system.},
doi = {10.1103/physreva.99.063413},
journal = {Physical Review A},
number = 6,
volume = 99,
place = {United States},
year = {Mon Jun 17 00:00:00 EDT 2019},
month = {Mon Jun 17 00:00:00 EDT 2019}
}
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Figures / Tables:
FIG. 1: Photodetachment cross sections for the 3$p_{1/2}$ subshell of $\mathrm{Cl}^−$ (upper panel) and the 3$p_{3/2}$ subshell (lower panel) in the vicinity of the $2p$ thresholds calculated at the 14-channel (thick red curve) and 7-channel (thin black curve) levels as explained in text. The $2p$ thresholds are indicated by verticalmore »
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