Postcollisional decay in Ne multiple ionization by H2+ ions in breakup collisions

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Title Postcollisional decay in Ne multiple ionization by H2+ ions in breakup collisions
Author Sant'Anna, M. M.; Luna, H.; Santos, A. C. F.; McGrath, C.; Shah, M. B.; Cavalcanti, Eric Gama; Sigaud, G. M.; Montenegro, E. C.
Journal Name Physical Review A (Atomic, Molecular and Optical Physics)
Year Published 2003
Place of publication Ridge, NY
Publisher American Physical Society
Abstract We measured the Neq+ charge-state yield distribution for Ne atoms multiply ionized by 1-MeV/amu H2+, in coincidence with the final state of the projectile, for both breakup and nonbreakup channels. Measurements with 1-MeV H+ projectiles were also performed. While the H2+ nonbreakup channel produces results similar to equal-velocity proton or electron projectiles, the breakup channels lead to a charge-state yield distribution very close to the known Ne 2s-1 postcollisional decay distribution, measured through photoionization [T. A. Carlson, W. E. Hunt, and M. O. Krause, Phys. Rev. 151, 41 (1966)]. This behavior suggests that, in the breakup channels, contributions to multiple ionization from mechanisms that are usually considered to be dominant in ion-atom collisions are less important than the postcollisional decay.
Peer Reviewed Yes
Published Yes
Publisher URI http://pra.aps.org/
Alternative URI http://dx.doi.org/10.1103/PhysRevA.68.042707
Volume 68
Issue Number 4
Page from 042707-1
Page to 042707-5
ISSN 1050-2947
Date Accessioned 2009-11-11
Date Available 2009-12-11T06:45:57Z
Language en_AU
Faculty Faculty of Science, Environment, Engineering and Technology
Subject PRE2009-Atomic and Molecular Physics
URI http://hdl.handle.net/10072/26684
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

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