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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:07 |
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Conference: Bucharest University Faculty of Physics 2011 Meeting
Section: Nuclear and Elementary Particles Physics
Title:
Comparison between the C# code for different nucleus-nucleus reactions and other simulation codes predictions for charged hadrons emitted in nuclear reactions at 4.5 A GeV/c
Authors:
E Stan**, I. V. Grossu*, C. Besliu*, Al Jipa*, D Felea**, M Calin* and T. Esanu*
Affiliation:
* Atomic and Nuclear Physics Chair, Faculty of Physics, University of Bucharest, ROMANIA
** Institute of Space Sciences Bucuharest-Măgurele, ROMANIA
E-mail
emil@spacescience.ro
Keywords:
nuclear collisions at high energy, many-body, simulation, chaos
Abstract:
Inspired by existing studies on Fermi nuclear systems, we tried to apply chaos theory to the more complex case of nuclear relativistic collisions at 4.5 A GeV/c. In this domain of energies it is possible to apply the many-body representation taking into account that the colliding nuclei could be considered as two “clouds of nucleons”. The two-nucleon reactions are a key point in understanding the processes involved, in this context. Using the C# code for chaos analysis of many body systems for different nucleus-nucleus reactions, we implemented a numerical toy-model for relativistic nuclear collisions at 4.5 A GeV/c (the SKM200 collaboration). An encouraging agreement with experimental data was obtained for momentum, energy, rapidity, and angular distributions for negative pions. Further analyses are currently in progress: stability (Lyapunov Exponent method), fragmentation (“degree of fragmentation”, “clusterization maps”, statistics of clusters), time evolution (comparison between Hubble and chronometric time), etc.
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