Neutralisation in H++H-collisions

作者: R Shingal , B H Bransden , D R Flower

DOI: 10.1088/0022-3700/18/12/023

关键词: Electron transferWave functionHydrogenPhysicsAtomic orbitalElectron configurationElectron exchangeAtomic physics

摘要: A two-centre expansion in travelling atomic orbitals is employed to investigate H+-H- collisions at energies and above 8 keV (lab) for which electron exchange between the hydrogen atoms formed neutralisation reaction unimportant. In addition H++H- channel, terms representing H(n=2)+H(1s) H(n=3)+H(1s) are included wavefunction together with a number of pseudostate designed overlap hydrogenic continuum. The calculated cross sections agreement high previous calculations based on one-electron model by Ermolaev (1985), also agree quite well 8-10 data Gaily Harrison (1970).

参考文章(13)
V. Sidis, C. Kubach, D. Fussen, Ionic-covalent problem in theH++H−⇄H*+H collisional system Physical Review A. ,vol. 27, pp. 2431- 2446 ,(1983) , 10.1103/PHYSREVA.27.2431
Joseph Callaway, John W. Wooten, Scattering of electrons by hydrogen atoms at intermediate energies Physical Review A. ,vol. 9, pp. 1924- 1931 ,(1974) , 10.1103/PHYSREVA.9.1924
B H Bransden, A M Ermolaev, R Shingal, One- and two-electron models for electron capture by He+ ions from Li0 at intermediate energies Journal of Physics B. ,vol. 17, pp. 4515- 4521 ,(1984) , 10.1088/0022-3700/17/22/012
S. Chandrasekhar, Some remarks on the negative hydrogen ion and its absorption coefficient The Astrophysical Journal. ,vol. 100, pp. 176- ,(1944) , 10.1086/144654
T D Gaily, M F A Harrison, A measurement of the charge exchange cross section in He + -H - collisions Journal of Physics B. ,vol. 3, pp. 1098- 1104 ,(1970) , 10.1088/0022-3700/3/8/012
Kanika Roy, S. C. Mukherjee, Charge Transfer in H + - H − Collisions Physical Review A. ,vol. 7, pp. 130- 134 ,(1973) , 10.1103/PHYSREVA.7.130
V. Sidis, C. Kubach, D. Fussen, Developments in the H+-h- Problem Physical Review Letters. ,vol. 47, pp. 1280- 1284 ,(1981) , 10.1103/PHYSREVLETT.47.1280
F. Borondo, A. Macías, A. Riera, Nonadiabatic ionic–covalent transitions. Exponential–linear model for the process H++H−→H(2s,2p)+H(1s) The Journal of Chemical Physics. ,vol. 74, pp. 6126- 6132 ,(1981) , 10.1063/1.441002