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Positronium formation in positron-hydrogen collisions with Debye potentials
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TLDR
In this article, the effect of the screened Coulomb potential on positronium formation process was investigated by using the Debye-Huckel potential, and the present results are compared with available theoretical calculations.Abstract:
Positronium (Ps) formation cross sections (n = 1, 2) in positron-hydrogen collisions in Debye plasma environment are calculated using the screening approximation model for various Debye screening lengths from the Ps formation thresholds to 50 eV. The effect of the screened Coulomb potential on Ps formation process is investigated by using the Debye-Huckel potential. The present results are compared with available theoretical calculations.read more
Citations
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Review of quantum collision dynamics in Debye plasmas
TL;DR: In this paper, a comprehensive review of the recent studies in atomic physics in Debye plasmas is provided, including atomic electronic structure, photon excitation and ionization, electron/positron impact excitation, ionization and charge transfer of ion-atom/ion collisions.
Journal ArticleDOI
A review of quantum collision dynamics in Debye plasmas
TL;DR: In this article, a comprehensive review of the recent studies in atomic physics in Debye plasmas is provided, focusing on atomic electronic structure, photon excitation and ionization, electron/positron impact excitation, ionization and charge transfer of ion-atom/ion collisions.
Journal ArticleDOI
Positron scattering from hydrogen atom embedded in dense quantum plasma
TL;DR: In this article, the authors investigated the scattering of positrons from the ground state of hydrogen atoms embedded in dense quantum plasma by applying a formulation of the three-body collision problem in the form of coupled multi-channel two-body Lippmann-Schwinger equations.
An investigation of resonances in e + -H scattering embedded in Debye plasmas
Ye Ning,Z. C. Yan,Y. K. Ho +2 more
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An investigation of resonances in e+-H scattering embedded in Debye plasma
Ye Ning,Zong-Chao Yan,Yew Kam Ho +2 more
TL;DR: In this article, the S-wave and P-wave resonances in weakly coupled Debye plasma in which the interaction between two charged particles is represented by a screened Coulomb potential were analyzed.
References
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Journal ArticleDOI
A Unified Theory of Nuclear Reactions, II
TL;DR: In this paper, the effective Hamiltonian method for nuclear reactions described in an earlier paper with the same title, part I, is generalized so as to include all possible reaction types, as well as the effects arising from the identity of particles.
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Bound Eigenstates of the Static Screened Coulomb Potential
TL;DR: In this paper, a numerical solution for Schr\"odinger's wave equation using a one-dimensional difference method was obtained for a two-particle system interacting through a static screened Coulomb potential (SSCP).
Journal ArticleDOI
An asymmetric distribution of positrons in the Galactic disk revealed by gamma-rays.
Georg Weidenspointner,Gerry Skinner,Gerry Skinner,Gerry Skinner,Pierre Jean,Jürgen Knödlseder,Peter von Ballmoos,Giovanni F. Bignami,Giovanni F. Bignami,Roland Diehl,Andrew W. Strong,Bertrand Cordier,Stéphane Schanne,Christoph Winkler +13 more
TL;DR: Positron production at this level from hard LMXBs in the Galactic bulge would reduce (and possibly eliminate) the need for more exotic explanations, such as those involving dark matter.
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Dense plasmas, screened interactions, and atomic ionization
TL;DR: In this paper, the random field approach is used to model the stochastic perturbation of the target by plasma density fluctuations in terms of the dielectric response function.
Journal ArticleDOI
Accurate numerical solution of the radial Schrödinger and Dirac wave equations
TL;DR: In this paper, a FORTRAN 77 subroutine package for the numerical solution of the Schrodinger and Dirac wave equations for central fields is presented, such that the function ν ( r ) ≡ rV( r ) is finite for all r and tends to constant values for r → 0 and r → ∞.