Positronium and antihydrogen formation in the [ital e][sup +]-H and Ps-[ital [bar p]] systems

Journal Article · Mon May 30 00:00:00 EDT 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.72.3495· OSTI ID:7116603

Mitroy, J ^[1]; Stelbovics, A T ^[2]

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1. Faculty of Science, Northern Territory University, GPO Box 40146, Casuarina, Northern Territory 0811 (Australia)
2. Centre for Atomic, Molecular and Surface Physics, School of Mathematical and Physical Sciences, Murdoch University, Murdoch, Western Australia 6150 (Australia)

The close coupling equations for the [ital e][sup +]-H and Ps-[ital [bar p]] systems are solved for a model calculation comprising three hydrogen H(1[ital s], 2[ital s], 2[ital p]) and three positronium Ps(1[ital s], 2[ital s]), Ps(1[ital s]), Ps(2[ital s]), and Ps(2[ital p]) states for [ital e][sup +]+H[r arrow]Ps+[ital p] reaction achieves a peak of 2.7[pi][ital a][sub 0][sup 2] and is smaller than the only existing set of experimental data. The cross section for antihydrogen formation in the Ps+[ital [bar p]][r arrow][ital e][sup +][bar H] reaction reaches a maximum of (13--14)[pi][ital a][sub 0][sup 2] for incident antiproton energies between 6.5 and 11 keV.

• OSTI ID: 7116603
• Journal Information: Physical Review Letters; (United States), Vol. 72:22; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANTIMATTER
YIELDS
HYDROGEN
POSITRON-ATOM COLLISIONS
POSITRONIUM
ANTIPROTON REACTIONS
CROSS SECTIONS
ELECTRON TRANSFER
PRODUCTION
THEORETICAL DATA
ANTINUCLEON REACTIONS
ATOM COLLISIONS
BARYON REACTIONS
COLLISIONS
DATA
ELEMENTS
HADRON REACTIONS
INFORMATION
MATTER
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
POSITRON COLLISIONS
664500* - Special Atoms & Molecules- (1992-)