Eur. Phys. J. D 34, 101-104 (2005)
https://doi.org/10.1140/epjd/e2005-00128-3

Branching ratios of successive emission (up to three) of C_2n⁺ (n = 1–5) fragments in asymmetrical fission processes of C₆₀^r+ 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

Abstract

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.