2D momentum distribution of electron in transfer ionization of helium atom by fast proton

28th International Conference on Photonic, Electronic and Atomic Collisions

Schöffler, M.S.^1 ; Chuluunbaatar, O.^2,3 ; Popov, Yu.V.^4 ; Houamer, S.^5 ; Titze, J.^1 ; Jahnke, T.^1 ; Schmidt, L.Ph.H.^1 ; Jagutzki, O.^1 ; Galstyan, A.^6 ; Gusev, A.A.^2

Institut für Kernphysik, University Frankfurt, Max-von-Laue-Str. 1, Frankfurt

60438, Germany^1

Joint Institute for Nuclear Research, Moscow region, Dubna

141980, Russia^2

School of Mathematics and Computer Science, National University of Mongolia, UlaanBaatar, Mongolia^3

Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow

119991, Russia^4

Département de Physique, Faculté des Sciences, Université Ferhat Abbas, Sétif

19000, Algeria^5

Faculty of Physics, Lomonosov Moscow State University, Moscow

119991, Russia^6

关键词: Ejected electrons;    Fast protons;    Initial state;    Momentum distributions;    Shake-off;    Transfer ionization;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/8/082002/pdf
DOI  :  10.1088/1742-6596/488/8/082002

来源: IOP

【 摘 要 】

2D distribution of momentum components of the ejected electron in the reaction H++He → H+He2++e at 630 keV proton is studied both theoretically and experimentally. This allows to unambiguously identify contributions from the shake-off and binary encounter mechanisms of transfer ionization. It is shown that the results are highly sensitive to the quality of the initial-state wave function.