Ha. Slim et Am. Ermolaev, THEORETICAL-STUDY OF THE N = 2 EXCITATION OF ATOMIC-HYDROGEN BY PROTON IMPACT, Journal of physics. B, Atomic molecular and optical physics, 27(9), 1994, pp. 120000203-120000209
The n = 2 excitation of atomic hydrogen by proton impact has been stud
ied using the semiclassical impact parameter coupled-channel method in
the range of impact energies between 15 and 1000 keV. In the discussi
on that follows, special attention is paid to the interval from 15 to
200 keV where theoretical cross sections show considerable variation d
epending on the particular choice of the expansion basis and where exp
erimental data for excitation of the 2p subshell have recently become
available.