Absolute charge transfer and fragmentation cross sections in He2+-C60 collisions.
We have determined absolute charge transfer and fragmentation cross sections in He2++C60 collisions in the impact-energy range 0.1-250 keV by using a combined experimental and theoretical approach. We have found that the cross sections for the formation of He+ and He0 are comparable in magnitude, which cannot be explained by the sole contribution of pure single and double electron capture but also by contribution of transfer-ionization processes that are important even at low impact energies. The results show that multifragmentation is important only at impact energies larger than 40 keV; at lower energies, sequential C2 evaporation is the dominant process.
Rentenier
A
A
Laboratoire de Collisions, Agrégats et Reactivité, UMR 5589 CNRS, Université Paul Sabatier 3, 31062 Toulouse, France.
Ruiz
L F
LF
Díaz-Tendero
S
S
Zarour
B
B
Moretto-Capelle
P
P
Bordenave-Montesquieu
D
D
Bordenave-Montesquieu
A
A
Hervieux
P-A
PA
Alcamí
M
M
Politis
M F
MF
Hanssen
J
J
Martín
F
F