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Abstract:

We have derived simplified formulas for the transition probability from an entrance channel |i to an exit channel |f that corresponds to a heavy-ion reaction. It is shown that a rearrangement of the perturbation series leads to an expansion of the cross section in terms of the ratio y between the duration of a nucleon-nucleon collision and the elapsed time between two successive interactions. The cross section splits into two contributions, the Markovian part independent of y, and the non-Markovian one containing explicit y dependence. Such a decomposition allows us to demonstrate that a transition from the Markovian to the non-Markovian behavior is to be expected around 20 MeV per particle in the initial channel. This transition manifests itself in a change in the slope of the width of the mass distribution as a function of the incident energy. This fact seems to be in agreement with existing data. NUCLEAR REACTIONS Heavy-ion reactions, Gaussian random matrix ensembles, perturbative expansion, ratio between characteristic times. Mark-ovian and non-Markovian contributions to the cross section. © 1980 The American Physical Society.

Registro:

Documento: Artículo
Título:Markovian and non-Markovian effects in heavy-ion reactions at 10 -200 MeV per nucleon
Autor:Hernandez, E.S.; Mantzouranis, G.
Filiación:Nuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, CA 94720, United States
Departmento de Fisica, Facultad de Ciencias Exactas y Naturales, 1428 Buenos Aires, Argentina
Año:1980
Volumen:22
Número:2
Página de inicio:575
Página de fin:582
DOI: http://dx.doi.org/10.1103/PhysRevC.22.575
Título revista:Physical Review C
ISSN:05562813
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v22_n2_p575_Hernandez

Referencias:

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Citas:

---------- APA ----------
Hernandez, E.S. & Mantzouranis, G. (1980) . Markovian and non-Markovian effects in heavy-ion reactions at 10 -200 MeV per nucleon. Physical Review C, 22(2), 575-582.
http://dx.doi.org/10.1103/PhysRevC.22.575
---------- CHICAGO ----------
Hernandez, E.S., Mantzouranis, G. "Markovian and non-Markovian effects in heavy-ion reactions at 10 -200 MeV per nucleon" . Physical Review C 22, no. 2 (1980) : 575-582.
http://dx.doi.org/10.1103/PhysRevC.22.575
---------- MLA ----------
Hernandez, E.S., Mantzouranis, G. "Markovian and non-Markovian effects in heavy-ion reactions at 10 -200 MeV per nucleon" . Physical Review C, vol. 22, no. 2, 1980, pp. 575-582.
http://dx.doi.org/10.1103/PhysRevC.22.575
---------- VANCOUVER ----------
Hernandez, E.S., Mantzouranis, G. Markovian and non-Markovian effects in heavy-ion reactions at 10 -200 MeV per nucleon. 1980;22(2):575-582.
http://dx.doi.org/10.1103/PhysRevC.22.575