NASA NTRS · 19760012835
Differential cross-section for positronium formation in electron-atomic hydrogen collisions
Abstract
The L=0 and 1 partial wave amplitudes obtained by a two-state coupled static approximation with correlation with the L greater than or equal to 2 Born amplitudes were combined to obtain the differential cross section for positronium formation in electron-atomic hydrogen collisions. For positron energies of 0.64 and 0.75 ryd, minima at the scattering angles of 57 deg and 51 deg are found. Total cross sections for positronium formation for low and intermediate impact energies are given. Measurement of the differential cross section for the process positron + helium yields positronium + helium ion for the detection of possible minima is suggested.
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Drachman, R. J., Omidvar, K., Mcguire, J. H.. 1976-03-01. Differential cross-section for positronium formation in electron-atomic hydrogen collisions. https://ntrs.nasa.gov/citations/19760012835
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