DOI 10.1007/s100529800847
Relativistic antihydrogen production
H. Meier1 - Z. Halabuka1 - K. Hencken1 - D. Trautmann1 - G. Baur2
1 Institut für Physik der Universität Basel,
CH-4056 Basel, Switzerland
2 Institut für Kernphysik (Theorie), Forschungszentrum Jülich,
D-52425 Jülich, Germany
Received: 19 December 1997 / Published online: 10 March 1998
Abstract
Antihydrogen has recently been produced in collisions of
antiprotons with ions. While passing through the Coulomb
field of a nucleus an antiproton will create an
electron-positron pair. In rare cases the positron is bound
by the antiproton and an antihydrogen atom produced.
We calculate the production of relativistic antihydrogen
atoms by bound-free pair production. The cross section is
calculated in the semiclassical approximation (SCA), or
equivalently in the plane wave Born approximation (PWBA)
using exact Dirac-Coulomb wave functions.
We compare our calculations to the equivalent photon
approximation (EPA).
Copyright Springer-Verlag
