Institut de Physique Nucléaire, IN2P3-CNRS and Université Paris-Sud, 91406 Orsay Cedex, France.
Phys Rev Lett. 2010 Jan 29;104(4):043401. doi: 10.1103/PhysRevLett.104.043401. Epub 2010 Jan 27.
The complete fragmentation of highly excited and multicharged C(n)(q+) clusters (n=5-10; q=2-4), produced in high velocity collisions of C(n)(+) with atoms, has been measured. Multiplicity distributions are presented and used to deduce, within a statistical framework, the partitioning of energy between the fragments' production and fragments' kinetic energy. This partitioning is found to scale as the charge over mass ratio of the cluster.
已测量出在 C(n)(+)与原子的高速碰撞中产生的高激发和多电荷 C(n)(q+) 团簇(n=5-10;q=2-4)的完全碎裂。呈现了多重分布,并在统计框架内用于推断碎片产生和碎片动能之间的能量分配。发现这种分配与团簇的电荷与质量比成正比。