Showing papers by "Vito Latora published in 1996"
TL;DR: In this paper, the fragmentation resulting from peripheral Au + Au collisions at an incident energy of 35 MeV/nucleon was investigated, and a power-law charge distribution, with an intermittency signal was observed for events selected in the region of the Campi scatter plot where critical critical behavior is expected.
Abstract: The fragmentation resulting from peripheral Au + Au collisions at an incident energy of {ital E}=35 MeV/nucleon is investigated. A power-law charge distribution, {ital A}{sup {minus}{tau}} with {tau}{approx_equal}2.2, and an intermittency signal are observed for events selected in the region of the Campi scatter plot where {open_quote}{open_quote}critical{close_quote}{close_quote} behavior is expected. {copyright} {ital 1996 The American Physical Society.}
29 citations
TL;DR: In this paper, the authors investigated the EOS of classical systems having 300 and 512 particles confined in a box with periodic boundary conditions and obtained an analytical EOS around the critical point in good agreement with the one extracted from the numerical simulations.
25 citations
TL;DR: It is found that the collision Au+Au at an incident energy of 35 MeV/nucleon shows a critical behavior at peripheral impact parameters, revealed through the analysis of conditional moments of charge distributions, Campi scatter plot, and the occurrence of large fluctuations in the region of the Campi plot where this critical behavior is expected.
Abstract: Within the framework of classical molecular dynamics, we study the collision Au+Au at an incident energy of 35 MeV/nucleon. It is found that the system shows a critical behavior at peripheral impact parameters, revealed through the analysis of conditional moments of charge distributions, Campi scatter plot, and the occurrence of large fluctuations in the region of the Campi plot where this critical behavior is expected. When applying the experimental filters of the MULTICS-MINIBALL apparatus, it is found that criticality signals can be hidden due to the inefficiency of the experimental apparatus. The signals are recovered by identifying semiperipheral and peripheral collisions looking to the velocity distribution of the largest fragment, and selecting the most complete events. {copyright} {ital 1996 The American Physical Society.}
19 citations
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TL;DR: In this article, the authors analyzed multifragment events resulting from peripheral Au + Au collisions at 35 MeV/nucleon in terms of critical behavior and found that the analysis of most of criticality signals proposed so far (conditional moments of charge distributions, Campi scatter plot, fluctuations of the size of the largest fragment, intermittency analysis) is consistent with the occurrence of a critical behavior of the system.
Abstract: Multifragment events resulting from peripheral Au + Au collisions at 35 MeV/nucleon are analysed in terms of critical behavior. The analysis of most of criticality signals proposed so far (conditional moments of charge distributions, Campi scatter plot, fluctuations of the size of the largest fragment, intermittency analysis) is consistent with the occurrence of a critical behavior of the system.
01 Jan 1996
TL;DR: In this paper, the authors investigate the possibility of a liquid-gas phase transition in a finite system and find evidence for the presence of a critical behavior of the finite system through a study of mass distributions, scaled factorial moments and moments of cluster mass distributions.
Abstract: We investigate the possibility of occurrence of a liquid-gas phase transition in a finite system. Through a study of mass distributions, scaled factorial moments and moments of cluster mass distributions, we find evidence for the presence of a critical behavior of our finite system. Furthermore, by studying scaling invariance of hydrodynamical equations in the framework of classical molecular dynamics, it is shown that hydrodynamical scaling is valid at high beam energies and not at low beam energies. At the beam energy where the violation of the scaling occurs, one observes a mass distribution exhibiting a power law which corresponds to the occurrence of a phase transition.