Single photon double ionization of Helium at 800 eV _ observation of the Quasi Free Mechanism

[摘要] In a kinematically complete experiment we have measured the photo double ionization of Helium at a photon energy of 800 eV and observed He2+ions with 0 momentum, corresponding to a back-to-back-emission of the two electrons. The results are in good agreement with theoretical calculations.

[发布机构] Lawrence Berkeley National Lab, Berkeley; CA; 94720, United States^1;Institut für Kernphysik, Goethe University Frankfurt, Frankfurt, Germany^2;Auburn University, Auburn; AL; 36849, United States^3;Kansas State University, Manhattan; KS; 66506, United States^4;Theoretical Division, Los Alamos National Laboratory, Los Alamos; NM; 87545, United States^5;Australian National University, Canberra; ACT; 0200, Australia^6;Curtin University, Perth; WA; 6845, Australia^7

[关键词] Complete experiment;Photo double ionization;Photon energy;Single-photon double ionization;Theoretical calculations