Author/Authors :
K. Yuasa-Nakagawa، نويسنده , , T. Nakagawa، نويسنده , , K. Furutaka، نويسنده , , T. Shirai and K. Matsuda، نويسنده , , Y. Futami، نويسنده , , K. Yoshida، نويسنده , , J. Kasagi، نويسنده , , S.M. Lee، نويسنده , , T. Suomijarvi، نويسنده , , W.Q. Shen، نويسنده , , T. Matsuse، نويسنده ,
Abstract :
In order to study entrance channel and angular momentum effects on the pre-ecission time, light charged particle multiplicities were measured in coincidence with binary decay fragments in the reactions 58Ni(580 MeV) + 56Fe and 86Kr(890 MeV) + 27Al, which lead to similar composite systems with almost the same excitation energy. It is observed that the lifetime of the composite system decreases as the entrace channel spin increases.
Keywords :
Heavy-ion reactions , Pre- and post-scission charged particle multiplicities , Estimated pre-scission time , Entrance channel effect , Average angular momentum for binary decay , Binary decay fragments
