Universal fluctuations in heavy-ion collisions in the Fermi energy domain

Abstract : We discuss the scaling laws of both the charged fragments multiplicity fluctuations and the charge of the largest fragment fluctuations for Xe+Sn collisions in the range of bombarding energies between 25 MeV/A and 50 MeV/A. We show close to E_{lab}=32 MeV/A the transition in the fluctuation regime of the charge of the largest fragment which is compatible with the transition from the ordered to disordered phase of excited nuclear matter. The size (charge) of the largest fragment is closely related to the order parameter characterizing this process.
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Soumis le : vendredi 7 juillet 2006 - 12:49:42
Dernière modification le : mardi 19 février 2019 - 09:52:12

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R. Botet, M. Ploszajczak, A. Chbihi, B. Borderie, D. Durand, et al.. Universal fluctuations in heavy-ion collisions in the Fermi energy domain. Physical Review Letters, American Physical Society, 2001, 86, pp.3514-3517. ⟨10.1103/PhysRevLett.86.3514⟩. ⟨in2p3-00008331⟩

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