Progress towards antihydrogen production by the reaction of cold antiprotons with positronium atoms Page: 4 of 11
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which has a cross section aT and where np, and nr are the Ps and H principal quantum
numbers. From charge conjugation 6H is equal to aH the cross section for the process
p + Ps(n,) -+ H(nH) + e' (1b)
and in section 2 an experiment is described which is an attempt to observe the latter
reaction. As detailed in section 3, a number of experimental techniques developed for
this purpose can be applied to the observation of H formation by reaction 1(a).
- Total H
20 - - H (2s)
......... H (2p)
G 10 '--
0 5 10 15
Ps ENERGY (eV)
Figure 1. Cross sections for antihvdrogen formation in p-Ps collisions
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Charlton, M.; Laricchia, G. & Deutch, B.I. Progress towards antihydrogen production by the reaction of cold antiprotons with positronium atoms, article, March 1, 1995; New Mexico. (digital.library.unt.edu/ark:/67531/metadc683465/m1/4/: accessed October 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.