12,750 research outputs found
Specific heat at constant volume in the thermodynamic model
A thermodynamic model for multifragmentation which is frequently used appears
to give very different values for specific heat at constant volume depending
upon whether canonical or grand canonical ensemble is used. The cause for this
discrepancy is analysed.Comment: Revtex, 7 pages including 4 figure
Extending the canonical thermodynamic model: inclusion of hypernuclei
The canonical thermodynamic model has been used frequently to describe the
disassembly of hot nuclear matter consisting of neutrons and protons. Such
matter is formed in intermediate energy heavy ion collisions. Here we extend
the method to include, in addition to neutrons and protons, lambda particles.
This allows us to include productions of hypernuclei in intermediate energy
heavy ion collisions. We can easily predict average mass number of hypernuclei
produced and values of relative cross-sections of different hypernuclei.
Computation of absolute cross-section was not attempted at this stage and will
require much more detailed work.Comment: 14 pages, 5 figure
Radial flow has little effect on clusterization at intermediate energies in the framework of the Lattice Gas Model
The Lattice Gas Model was extended to incorporate the effect of radial flow.
Contrary to popular belief, radial flow has little effect on the clusterization
process in intermediate energy heavy-ion collisions except adding an ordered
motion to the particles in the fragmentation source. We compared the results
from the lattice gas model with and without radial flow to experimental data.
We found that charge yields from central collisions are not significantly
affected by inclusion of any reasonable radial flow.Comment: 8 pages, 2 figures, submitted to PRC; Minor update and resubmitted to
PR
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