https://doi.org/10.1140/epjd/e2005-00128-3
Branching ratios of successive emission (up to three) of C2n+ (n = 1–5) fragments in asymmetrical fission processes of C60r+ ions (r = 4–6)
1
Laboratoire de Spectrométrie Ionique et Moléculaire,
Université Lyon 1, UMR 5579,
Domaine Scientifique de la Doua,
69622 Villeurbanne Cedex, France
2
Université Chouaib Doukkali, Département de Physique,
Laboratoire IMC, B.P. 20, Eljadida, Maroc
Corresponding author: a smartin@univ-lyon1.fr
Received:
6
September
2004
Published online:
13
July
2005
Highly charged C60 molecules are produced in
collisions between neutral C60 and multiply charged ions within a large
range of temperatures. Successive emission of one, two or three light
monocharged fragments referred as one-, two- and three-step processes have
been observed. The experimental mass branching ratios for the emission of
one C fragment from C
, C
and
C
ions are compared with the theoretical values using a
statistical model. From hotter C
ions, branching ratios for
three-step processes have been measured and the data are in good agreement
with an estimation using the branching ratios in one-step process.
PACS: 36.40.Ei – Phase transitions in clusters
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2005