Equilibrium and nonequilibrium fluctuations of the one-body distribution function
Year: 1994
Authors: Bonasera A., Colonna M., Di Toro M., Gulminelli F., Smerzi A.
Autors Affiliation: Laboratorio Nazionale del Sud, INFN, v.A. Doria, I-95125 Catania, Italy; Dipartimento di Fisica, Università di Catania, c.so, Italia, 57, I-95129 Catania, Italy; Dipartimento di Fisica and INFN, v. Celoria 16, I-20133 Milan, Italy.
Abstract: A general method to evaluate small-amplitude fluctuations of the semiclassical one-body Wigner function is presented both in the equilibrium and nonequilibrium framework. The correlation function of fluctuations is calculated as a time or ensemble average over the Boltzmann-Nordheim-Vlasov dynamics using the test-particle approach. We show a comparison with an analytical result from fluctuation theory in the equilibrium limit. In realistic heavy-ion collisions we compute mass variances in incomplete fusion reactions and widths of projectile-like fragment distributions in peripheral fragmentation events. In this case, together with fluctuations coming from scattering processes, mean-field fluctuations are automatically included.
Journal/Review: NUCLEAR PHYSICS. A (PRINT)
Volume: 572 (1) Pages from: 171 to: 180
KeyWords: Heavy-ion Collisions; Molecular-dynamics; Nuclear-dynamics; Transport-theory; Equation; Fragmentation; Simulation; SystemDOI: 10.1016/0375-9474(94)90428-6Citations: 6data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-10References taken from IsiWeb of Knowledge: (subscribers only)
