Six-state algebraic close-coupling calculation of positron-hydrogen scattering at low energies

Journal Article · Tue Aug 01 04:00:00 EDT 1995 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.52.1186· OSTI ID:83962

Gien, T T ^[1]

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1. Department of Physics, Memorial University of Newfoundland, St. John`s, Newfoundland, A1B 3X7 (Canada)

We did the Harris-Nesbet algebraic close-coupling calculation for positron-hydrogen scattering at low energies with the (1{ital s},2{ital s})H-(1{ital s},2{ital s})Ps, (1{ital s},2{ital s},2{ital p})H-(1{ital s},2{ital s})Ps, and (1{ital s},2{ital s},2{ital p})H-(1{ital s},2{ital s},2{ital p})Ps coupling schemes. Cross sections of elastic scattering, positronium formation, and Ps(1{ital s})-{ital p} elastic scattering were obtained for {ital L}=0,1,2,3,4,5,6 partial waves. The integrated cross sections for the relevant processes were then estimated. We compared our six-state close-coupling results with the ones calculated by solving the Lippmann-Schwinger coupled equations in momentum space. Many special features were seen in these cross sections.

• OSTI ID: 83962
• Journal Information: Physical Review A, Journal Name: Physical Review A Journal Issue: 2 Vol. 52; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COUPLING
ELASTIC SCATTERING
HYDROGEN
P STATES
POSITRON-ATOM COLLISIONS
POSITRONIUM
S STATES
S WAVES
STABILITY