Evidence for Two-Electron Excitation Producing Li <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>K</mi></math></span> Vacancies in Slow <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">Li</mi></mrow><mrow><mo>+</mo></mrow></msup></mrow></math></span> + He Collisions

N. Stolterfoht; U. Leithäuser

doi:10.1103/PhysRevLett.36.186

Evidence for Two-Electron Excitation Producing Li $K$ Vacancies in Slow ${Li}^{+}$ + He Collisions

N. Stolterfoht and U. Leithäuser

Phys. Rev. Lett. 36, 186 – Published 26 January 1976

Abstract

Significant Li $K$ excitation is observed in ${Li}^{+}$ + He collisions at incident energies as low as 6 keV. To interpret the results a multistep process is proposed including two-electron excitation in the quasi molecule formed during the collision. The importance of this process is discussed for heavier collision systems.