Density fluctuations and multifragmentation of nuclear matter
نویسندگان
چکیده
منابع مشابه
Spinodal decomposition of expanding nuclear matter and multifragmentation
Density fluctuations of expanding nuclear matter are studied within a mean–field model in which fluctuations are generated by an external stochastic field. The time evolution of the system is studied in a kinetic–theory approach. In this model fluctuations develop about a mean one–body phase–space density corresponding to a hydrodynamic motion that describes a slow expansion of the system. A fl...
متن کاملProperties of stellar matter in supernova explosions and nuclear multifragmentation
During the collapse of massive stars, and the supernova type-II explosions, stellar matter reaches densities and temperatures which are similar to the ones obtained in intermediate-energy nucleus-nucleus collisions. The nuclear multifragmentation reactions can be used for determination of properties of nuclear matter at subnuclear densities, in the region of the nuclear liquid-gas phase transit...
متن کاملNuclear multifragmentation time scale and fluctuations of the largest fragment size.
Distributions of the largest fragment charge, Zmax, in multifragmentation reactions around the Fermi energy can be decomposed into a sum of a Gaussian and a Gumbel distribution, whereas at much higher or lower energies one or the other distribution is asymptotically dominant. We demonstrate the same generic behavior for the largest cluster size in critical aggregation models for small systems, ...
متن کاملNuclear multifragmentation critical exponents.
In a recent Letter [1] the EoS collaboration presented data of fragmentation of 1 A GeV gold nuclei incident on carbon. By analyzing moments of the fragment charge distribution, the authors claim to determine the values of the critical exponents γ, β, and τ for finite nuclei. These data represent a crucial step forward in our understanding of the physics of nuclear fragmentation. However, as we...
متن کاملLattice Simulation of Nuclear Multifragmentation
Received (received date) Revised (revised date) Motivated by the decade-long debate over the issue of criticality supposedly observed in nuclear multifragmentation, we propose a dynamical lattice model to simulate the phenomenon. Its Ising Hamiltonian mimics a short range attractive interaction which competes with a thermal-like dissipative process. The results here presented, generated through...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review C
سال: 2000
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.62.044611