Single ionization of helium by 40–3000-keV antiprotons
نویسندگان
چکیده
منابع مشابه
K-shell ionization by antiprotons.
We present calculations for the impact-parameter dependence of K-shell ionization rates in p-Cu and in p-Ag collisions at various projectile energies. We show that the effect of the attractive Coulomb potential on the Rutherford trajectory and the antibinding effect caused by the negative charge of the antiproton result in a considerable increase of the ionization probability. Total ionization ...
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A method is described for investigating the ionization produced in helium by collisions between quasi-stationary atoms—that is, atoms possessing only thermal velocities—and a beam of neutral helium atoms with kinetic energy less than 100 eV. Ionization is shown to begin when the kinetic energy of the bombarding atoms is twice as great as the minimum kinetic energy which electrons must possess i...
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Electron-impact ionization cross sections for helium are calculated using time-dependent close-coupling theory. The total wave function for the three electron system is expanded in nine dimensions, where three dimensions are represented on a radial lattice and a coupled channels expansion is used to represent the other six dimensions. Collision cross sections are obtained by t→` projection onto...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 1990
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.41.6536