He excitation in collisions with protons: an unresolved problem

作者: Wolfgang Fritsch

DOI: 10.1016/0375-9601(91)90206-N

关键词: Point (geometry)RenormalizationPhysicsAtomic physicsQuantum electrodynamicsBorn approximationExcitation

摘要: Abstract We point out an inconsistency in the published information on He excitation H+-He collisions. While renormalization of experimental data at higher energies results mutual agreement among themselves and with Born approximation, to 21P 21S states is variance cross sections n 1L states. As a tentative solution, we present calculation 1P excitation, n=2−4, within one-electron close-coupling model.

参考文章(15)
W. Fritsch, C. D. Lin, Excitation and charge transfer to 2s and 2p states in 1--20-keV H/sup +/-H collisions Physical Review A. ,vol. 26, pp. 762- 769 ,(1982) , 10.1103/PHYSREVA.26.762
J. Van den Bos, G.J. Winter, F.J. De Heer, Excitation of helium by protons in the 1–150 keV region Physica D: Nonlinear Phenomena. ,vol. 40, pp. 357- 384 ,(1968) , 10.1016/0031-8914(68)90135-3
R Shingal, B H Bransden, D R Flower, Neutralisation in H++H-collisions Journal of Physics B. ,vol. 18, pp. 2485- 2491 ,(1985) , 10.1088/0022-3700/18/12/023
John T. Park, F. D. Schowengerdt, HEAVY-PARTICLE ENERGY-LOSS SPECTROMETRY: INELASTIC CROSS SECTIONS FOR PROTONS INCIDENT UPON HELIUM. Physical Review. ,vol. 185, pp. 152- 164 ,(1969) , 10.1103/PHYSREV.185.152
R. Hippler, W. Harbich, H. Madeheim, H. Kleinpoppen, H. O. Lutz, Cross sections for charge-exchange excitation to H(2p) in proton-rare-gas-atom collisions (1-25 keV). Physical Review A. ,vol. 35, pp. 3139- 3141 ,(1987) , 10.1103/PHYSREVA.35.3139
H A Slim, E L Heck, B H Bransden, D R Flower, Charge transfer and excitation in proton−helium collisions Journal of Physics B. ,vol. 24, pp. 1683- 1694 ,(1991) , 10.1088/0953-4075/24/7/021