Time scales in fragmentation

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The problem of fragmentation of excited finite systems is explored in the frame of classical molecular dynamics experiments of two-dimensional Lennard-Jones drops. The main objective of this work is to get information about the relative value of the relevant characteristic time scales (CTS) for this...

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Autores principales: Strachan, Alejandro Hernán, Dorso, Claudio Oscar
Publicado: 1997
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v55_n2_p775_Strachan
http://hdl.handle.net/20.500.12110/paper_05562813_v55_n2_p775_Strachan
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_05562813_v55_n2_p775_Strachan
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spelling paper:paper_05562813_v55_n2_p775_Strachan2023-06-08T15:41:42Z Time scales in fragmentation Strachan, Alejandro Hernán Dorso, Claudio Oscar The problem of fragmentation of excited finite systems is explored in the frame of classical molecular dynamics experiments of two-dimensional Lennard-Jones drops. The main objective of this work is to get information about the relative value of the relevant characteristic time scales (CTS) for this kind of process. We investigate the CTS for fragment formation, the stabilization of the radial flux, and the internal “temperature.” It is found that the asymptotic fragments are realized early in phase space, when the system is still dense, by the time the radial flux attains its asymptotic value. It is also shown that the temperature of the system during the breakup is quite homogenous with respect to the expected profile if local thermal equilibration takes place. Special emphasis is put on the investigation of the time scale of stabilization of the statistical properties of the mass spectrum, which is related to the kind of information carried by the asymptotic fragments. © 1997 The American Physical Society. Fil:Strachan, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Dorso, C.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1997 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v55_n2_p775_Strachan http://hdl.handle.net/20.500.12110/paper_05562813_v55_n2_p775_Strachan
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The problem of fragmentation of excited finite systems is explored in the frame of classical molecular dynamics experiments of two-dimensional Lennard-Jones drops. The main objective of this work is to get information about the relative value of the relevant characteristic time scales (CTS) for this kind of process. We investigate the CTS for fragment formation, the stabilization of the radial flux, and the internal “temperature.” It is found that the asymptotic fragments are realized early in phase space, when the system is still dense, by the time the radial flux attains its asymptotic value. It is also shown that the temperature of the system during the breakup is quite homogenous with respect to the expected profile if local thermal equilibration takes place. Special emphasis is put on the investigation of the time scale of stabilization of the statistical properties of the mass spectrum, which is related to the kind of information carried by the asymptotic fragments. © 1997 The American Physical Society.
author Strachan, Alejandro Hernán
Dorso, Claudio Oscar
spellingShingle Strachan, Alejandro Hernán
Dorso, Claudio Oscar
Time scales in fragmentation
author_facet Strachan, Alejandro Hernán
Dorso, Claudio Oscar
author_sort Strachan, Alejandro Hernán
title Time scales in fragmentation
title_short Time scales in fragmentation
title_full Time scales in fragmentation
title_fullStr Time scales in fragmentation
title_full_unstemmed Time scales in fragmentation
title_sort time scales in fragmentation
publishDate 1997
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v55_n2_p775_Strachan
http://hdl.handle.net/20.500.12110/paper_05562813_v55_n2_p775_Strachan
work_keys_str_mv AT strachanalejandrohernan timescalesinfragmentation
AT dorsoclaudiooscar timescalesinfragmentation
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