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

R Botet; M Ploszajczak; A Chbihi; B Borderie; D Durand; J Frankland

doi:10.1103/PhysRevLett.86.3514

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

Phys Rev Lett. 2001 Apr 16;86(16):3514-7. doi: 10.1103/PhysRevLett.86.3514.

Authors

R Botet¹, M Ploszajczak, A Chbihi, B Borderie, D Durand, J Frankland

Affiliation

¹ Laboratoire de Physique des Solides--CNRS, Bâtiment 510, Université Paris-Sud, Centre d'Orsay, F-91405 Orsay, France.

PMID: 11328011
DOI: 10.1103/PhysRevLett.86.3514

Abstract

We discuss the scaling laws of both the charged fragments multiplicity n fluctuations and the charge of the largest fragment Z(max) fluctuations for Xe + Sn collisions in the range of bombarding energies between 25A MeV and 50A MeV. We show at E(lab) > or similar to 32 MeV/A the transition in the fluctuation regime of Z(max) 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.