CTMC calculations of electron capture and ionization in collisions of multiply charged ions with elliptical Rydberg atoms

We have performed classical trajectory Monte Carlo (CTMC) studies of electron capture and ionization in multiply charged (Q=8) ion-Rydberg atom collisions at intermediate impact velocities. Impact parallel to the minor and to the major axis, respectively, of the initial Kepler electron ellipse has been investigated. The important role of the initial electron momentum distribution found for singly charged ion impact is strongly disminished for higher projectile charge, while the initial spatial distribution remains important for all values of Q studied.Comment: 3 pages, 5 figure

“Cjelovito” p-p mjerenje

We are reporting on an experiment leading from an initial optically pumped p to a final p state, in which all relevant amplitudes and phases can be determined. In particular, the charge exchange reaction H+ + Na(3p±1} → H(2p) + Na+ was studied at a projectile energy of 2 keV. This is the first quantum mechanically complete experiment with a non-isotropic initial state leading to a non-isotropic final state.Načinili smo mjerenje procesa u kojem početno optički pumpano stanje p prelazi u konačno stanje p uz određivanje svih relevantnih amplituda i faza. Posebice, proučavala se reakcija izmjene naboja H+ + Na(3p±1} → H(2p) + Na+ pri energiji protona od 2 keV. Ovo mjerenje predstavlja prvi kvantno-mehanički cjelovit eksperiment u kojem se mjerio prijelaz neizotropnog početnog stanja u neizotropno konačno stanje

A CTMC study of collisions between protons and H2+H_2^+ molecular ions

We study numerically collisions between protons and $H_2^+$ molecular ions at intermediate impact energies by using the Classical Trajectory Monte Carlo method (CTMC). Total and differential cross sections are computed. The results are compared with: a) the standard one electron--two nucleon scattering, and b) the quantum mechanical treatment of the $H^{+} - H^{+}_{2}$ scattering.Comment: ReVTeX, 5 pages + 5 figs. (EPS) To be published in Physica Script