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Title: Doubly excited {sup 1,3}P{sup o} resonance states of Ps{sup -} in weakly coupled plasmas

Abstract

The {sup 1,3}P{sup o} resonance states of positronium negative ions embedded in dense plasma environments are determined by calculating the density of resonance states using the stabilization method. A screened Coulomb potential obtained from the Debye model is used to represent the interaction between the charge particles, together with employing highly correlated wave functions to represent the correlation effect between them. We have calculated one {sup 1}P{sup o} and two {sup 3}P{sup o} resonances associated with and below the n=2 threshold of the positronium atom. The resonance energies and widths for various Debye lengths ranging from infinity to a small value are reported.

Authors:
;  [1]
  1. Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei, Taiwan 106 (China)
Publication Date:
OSTI Identifier:
20786897
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 73; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevA.73.032502; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ANIONS; ATOMS; CORRELATIONS; COULOMB FIELD; DEBYE LENGTH; ENERGY LEVELS; ENERGY-LEVEL DENSITY; ION COLLISIONS; PLASMA; POSITRONIUM; POTENTIAL ENERGY; RESONANCE; STABILIZATION; WAVE FUNCTIONS

Citation Formats

Kar, Sabyasachi, and Ho, Y. K.. Doubly excited {sup 1,3}P{sup o} resonance states of Ps{sup -} in weakly coupled plasmas. United States: N. p., 2006. Web. doi:10.1103/PHYSREVA.73.0.
Kar, Sabyasachi, & Ho, Y. K.. Doubly excited {sup 1,3}P{sup o} resonance states of Ps{sup -} in weakly coupled plasmas. United States. doi:10.1103/PHYSREVA.73.0.
Kar, Sabyasachi, and Ho, Y. K.. Wed . "Doubly excited {sup 1,3}P{sup o} resonance states of Ps{sup -} in weakly coupled plasmas". United States. doi:10.1103/PHYSREVA.73.0.
@article{osti_20786897,
title = {Doubly excited {sup 1,3}P{sup o} resonance states of Ps{sup -} in weakly coupled plasmas},
author = {Kar, Sabyasachi and Ho, Y. K.},
abstractNote = {The {sup 1,3}P{sup o} resonance states of positronium negative ions embedded in dense plasma environments are determined by calculating the density of resonance states using the stabilization method. A screened Coulomb potential obtained from the Debye model is used to represent the interaction between the charge particles, together with employing highly correlated wave functions to represent the correlation effect between them. We have calculated one {sup 1}P{sup o} and two {sup 3}P{sup o} resonances associated with and below the n=2 threshold of the positronium atom. The resonance energies and widths for various Debye lengths ranging from infinity to a small value are reported.},
doi = {10.1103/PHYSREVA.73.0},
journal = {Physical Review. A},
number = 3,
volume = 73,
place = {United States},
year = {Wed Mar 15 00:00:00 EST 2006},
month = {Wed Mar 15 00:00:00 EST 2006}
}