Positronium formation during scattering of positrons by hydrogen atoms

Journal Article · Thu Nov 30 23:00:00 EST 1989 · Physical Review (Section) A: General Physics; (USA)

DOI:https://doi.org/10.1103/PhysRevA.40.6231· OSTI ID:7017546

Nahar, S N ^[1]

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1. Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303 (US)

The formation of positronium (Ps) in different states by the impact of intermediate energy (20--500 eV) positrons on atomic hydrogen is calculated using the distorted-wave Born approximation along with the first Born approximation. Differential and integrated cross sections for the formation of Ps(1{ital s}), Ps(2{ital s}), Ps(2{ital p}{sub 0}), and Ps(2{ital p}{sub 1}) have been evaluated individually and then 1/{ital n}{sup 3} behavior for charge-transfer cross sections is used for {ital n}{gt}=3 to obtain the total cross sections for positronium formation. The present results for positronium formation cross sections are in agreement with the results of other available investigations.

• OSTI ID: 7017546
• Journal Information: Physical Review (Section) A: General Physics; (USA), Journal Name: Physical Review (Section) A: General Physics; (USA) Vol. 40:11; ISSN PLRAA; ISSN 0556-2791
• Country of Publication: United States
• Language: English

Related Subjects

640303* -- Atomic
Molecular & Chemical Physics-- Positronium
Muonium
& Muonic & Mesic Atoms & Molecules
640304 -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
BORN APPROXIMATION
CAPTURE
COLLISIONS
CROSS SECTIONS
DWBA
ELECTRON CAPTURE
ELEMENTS
ENERGY LEVELS
ENERGY RANGE
EV RANGE
EXCITED STATES
GROUND STATES
HYDROGEN
NONMETALS
PARTICLE PRODUCTION
POSITRON COLLISIONS
POSITRON-ATOM COLLISIONS
POSITRONIUM