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Direct observation of multi-ionization and multi-fragmentation in a high-velocity cluster-atom collision

Abstract : We report the direct observation of the multi-ionization of the $H_{21}^+$ hydrogen cluster in a single collision with a helium atom at 60 keV/u. Up to quadruple ionization of the cluster was observed and new multi-fragmentation channel were detected. Moreover, the results show two different fragmentation processes of doubly charged $H-{21}^{2+}$ clusters: emission of an $H_2^+$ dimer, or emission of an $H-3^+$ trimer after rearrangement in the cluster prior to fragmentation.
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http://hal.in2p3.fr/in2p3-00002437
Contributor : Sylvie Flores <>
Submitted on : Friday, May 29, 2009 - 1:38:05 PM
Last modification on : Tuesday, November 19, 2019 - 2:37:48 AM
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B. Farizon, M. Farizon, M.J. Gaillard, E. Gerlic, R. Genre, et al.. Direct observation of multi-ionization and multi-fragmentation in a high-velocity cluster-atom collision. Chemical Physics Letters, Elsevier, 1996, 252, pp.147-152. ⟨10.1016/S0009-2614(96)00125-X⟩. ⟨in2p3-00002437⟩

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