Messanae Universitas Studiorum

Tunnelling time-evolution in the investigation of the two-particle transfer and emission enhancement in sub-barrier heavy-ion collisions

Fazio, Giovanni and Giardina, G. and Olkhovsky, Vladislav S. and Sergeyev, V. S. (1994) Tunnelling time-evolution in the investigation of the two-particle transfer and emission enhancement in sub-barrier heavy-ion collisions. Atti della Accademia Peloritana dei Pericolanti, LXXII. pp. 441-455.

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Abstract

We present the penetration of Gaussian wave-packet probability density, incoming and reflection flux probability density at any depth inside an opaque barrier, finding expressions for the effective tunnelling velocity for the probability density inside the barrier as a function of the relative depth of penetration, the average transition (or penetration) duration, the effective velocity of the probability density flux inside the barrier as a function of the relative depth of penetration. On the base of analysis of this penetration we develop a model of sub-barrier two-particle tranfer and emission enhancement in nuclear collisions which is an alternative to the Josephson nuclear effect model. Some evaluations of the penetration and return time for the tunnelling motion, referring to two-nucleon transfer and emission enhancement in heavy-ion sub-barrier collisions are presented.

Item Type: Article
Subjects: M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Fisiche, Matematiche e Naturali
Depositing User: Stage ICCU
Date Deposited: 09 Mar 2005
Last Modified: 20 Sep 2012 08:39
URI: http://cab.unime.it/mus/id/eprint/144

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