Differential cross section for positronium formation in positron--atomic-hydrogen collisions. [0. 64 to 0. 75 Ry, total cross sections]

Journal Article · Thu Jul 01 04:00:00 EDT 1976 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.14.100· OSTI ID:7190075

Drachman, R J; Omidvar, K; McGuire, J H

We have combined the L = 0 and 1 partial-wave amplitudes obtained by a two-state coupled static approximation with correlation with the L > or = 2 Born amplitudes to obtain the differential cross section for positronium formation in positron--atomic-hydrogen collisions. For positron energies of 0.64 and 0.75 Ry, minima at the scattering angles of 57degree and 51degree 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 e/sup +/ + He ..-->.. Ps + He/sup +/ for the detection of possible minima is suggested. (AIP)

• Research Organization: Theoretical Studies Group, Goddard Space Flight Center, Greenbelt, Maryland 20771
• OSTI ID: 7190075
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 14:1; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640303* -- Atomic
Molecular & Chemical Physics-- Positronium
Muonium
& Muonic & Mesic Atoms & Molecules
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
COLLISIONS
CROSS SECTIONS
CRYOGENIC FLUIDS
DIFFERENTIAL CROSS SECTIONS
ELEMENTS
FLUIDS
HYDROGEN
NONMETALS
POSITRON COLLISIONS
POSITRON-ATOM COLLISIONS
POSITRONIUM
TOTAL CROSS SECTIONS