Some phenomenological considerations on the nuclear collisions at high energies

Details Some phenomenological considerations on the nuclear collisions at high energies Some phenomenological considerations on the nuclear collisions at high energies

2007-07-15

arxiv.org/abs/0707.2245v5

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 2 figures, preliminary results presented at Conference of Physics, Bucharest, 2007

Scientific paper

We present some results obtained by applying the chaos theory on the numerical study of one threedimensional, relativistic, many-body quark system. The asymptotic freedom property is introduced by employing a harmonic term in the bi-particle potential. In this context, we used also the outcome of a semiclassical study, applied to the quark constituents of nucleons. Depending on the initial temperature parameter, the system can evolve toward an oscillating or an expansion regime. It is important to notice also a transition region, characterized by a partial fragmentation (higher degree of order). This effect can be observed near the critical temperature and is related to the partial overcoming of the potential barrier (corresponding to the farthest particles from the system). The degree of fragmentation is defined on the Shannon entropy basis and using the graphs theory. For analyzing the expansion tendency of one relativistic many-body system, we employed also the virial coefficient.

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