Enhancement of kinetic energy fluctuations due to expansion

Details Enhancement of kinetic energy fluctuations due to expansion Enhancement of kinetic energy fluctuations due to expansion

2004-01-16

arxiv.org/abs/nucl-th/0401037v1

Phys.Rev. C69 (2004) 034610

Physics

Nuclear Physics

Nuclear Theory

6 pages, 4 figures

Scientific paper

10.1103/PhysRevC.69.034610

Global equilibrium fragmentation inside a freeze out constraining volume is a working hypothesis widely used in nuclear fragmentation statistical models. In the framework of classical Lennard Jones molecular dynamics, we study how the relaxation of the fixed volume constraint affects the posterior evolution of microscopic correlations, and how a non-confined fragmentation scenario is established. A study of the dynamical evolution of the relative kinetic energy fluctuations was also performed. We found that asymptotic measurements of such observable can be related to the number of decaying channels available to the system at fragmentation time.

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