LXX. Impact ionization by low-speed positive H-ions in hydrogen

Ionization of hydrogen and hydrogenic ions by antiprotons.

Presented here is a description of the ionization of hydrogen and hydrogenic ions by antiproton-impact, based on very large scale numerical solutions of the time-dependent Schrödinger equation in three spatial dimensions and on analysis of the topology of the electronic eigenenergy surfaces in the plane of complex internuclear distance. Comparison is made with other theories and very recent mea...

Doubly differential cross sections of low-energy electrons emitted in the ionization of molecular hydrogen by bare carbon ions.

Lokesh C. Tribedi, 1,* P. Richard, 1 D. Ling, 1 Y. D. Wang, 1 C. D. Lin, 1 R. Moshammer, 2 G. W. Kerby III, 3 M. W. Gealy, 3 and M. E. Rudd 3 J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506-2601 Gesellschaft für Schwerionenforschung, Darmstadt, Planckstrasse 1, D-64291, Federal Republic of Germany Department of Physics and Astronomy, University...

Multiple Ionization of Rare Gases by H+ and He+ Impact

Low-energy electron capture by Ne2+ ions from H(D)

Using the Oak Ridge National Laboratory ORNL ion-atom merged-beams apparatus, the absolute, total single-electron-capture cross section has been measured for collisions of Ne2+ with deuterium D at centerof-mass c.m. collision energies of 59–949 eV/u. With the high-velocity ion beams now available at the ORNL Multicharged Ion Research Facility, we have extended our previous merged-beams measurem...

Unexpected [M-H]+ ions in cyclopenta[b]indoles detection by electrospray ionization mass spectrometry.

Indole skeletons are present in numerous alkaloid products, pharmaceuticals, and agrochemicals. Cyclopenta[b]indole skeletons can be found in a number of indole alkaloids, and compounds containing them show various biological activities. Such compounds include antidepressants, anti-implantation agents, and effective antagonists of the prostaglandin D2 receptor. The structure’s potential biologi...