S-wave positron scattering by hydrogen atoms

Journal Article · Sat Dec 01 04:00:00 EST 1973 · J. Phys., B (London), v. 6, no. 12, pp. 2504-2515

DOI:https://doi.org/10.1088/0022-3700/6/12/016· OSTI ID:4315954

Chan, Y F; Fraser, P A

The S-wave scattering of positrons by hydrogen atoms is studied using the coupled static approximation with 26 correlation functions for energies up to the excitation threshold of hydrogen. Up to a certain energy, the formulation satisfies a bound principle. Below the positronium formation threshold, the calculated phase shifts are very close to those of Bhatia et al (Phys. Rev.; A3: the cross sections are very different from those of other earlier calculations. No resonances were detected in a search with energy spacing of about 0.02 eV over the region just below the excitation threshold. (auth)

• Research Organization: Univ. of Western Ontario, London
• NSA Number: NSA-29-022306
• OSTI ID: 4315954
• Journal Information: J. Phys., B (London), v. 6, no. 12, pp. 2504-2515, Journal Name: J. Phys., B (London), v. 6, no. 12, pp. 2504-2515; ISSN JPBAB
• Country of Publication: United Kingdom
• Language: English

Related Subjects

*HYDROGEN-- POSITRON COLLISIONS
*POSITRON COLLISIONS-- SCATTERING
ATOM COLLISIONS
ATOMS
COMPARATIVE EVALUATIONS
CORRELATION FUNCTIONS
CROSS SECTIONS
EXCITATION
MATRIX ELEMENTS
N60400* --Physics (Atomic & Molecular)--Collision Phenomena
PHASE SHIFT
POSITRONIUM
POSITRONS
R MATRIX
S WAVES
THRESHOLD ENERGY