Formation of antihydrogen in the ground state and {ital n}=2 level
- Department of Theoretical Physics, Indian Association for the Cultivation of Science, Jadavpur, Calcutta - 700032 (India)
The cross sections of antihydrogen formation in the ground state and {ital n}=2 level by the impact of antiprotons on the ground state of positronium have been calculated under the framework of the eikonal approximation for incident energy of 30--1000 keV. The excited-state capture cross sections are quite appreciable and are even larger than the ground-state cross sections for impact energies {le}75 keV. The total eikonal cross sections ({sigma}={sigma}{sub 1{ital s}}+{sigma}{sub 2{ital s}}+{sigma}{sub 2{ital p}}) are always higher than the corresponding first-order Born approximation cross section throughout the present energy span.
- OSTI ID:
- 44639
- Journal Information:
- Physical Review A, Vol. 51, Issue 5; Other Information: PBD: May 1995
- Country of Publication:
- United States
- Language:
- English
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