6533b7d7fe1ef96bd1267c04
RESEARCH PRODUCT
Dispersion of longitudinal momentum distributions induced in fragmentation reactions
V. FohrA. BacquiasM. V. RicciardiDaniela HenzlovaK.-h. SchmidtA. Kelic-heilsubject
PhysicsNuclear and High Energy PhysicsNuclear TheoryFOS: Physical sciencesBreakupResidualComputational physicsNuclear Theory (nucl-th)Fragmentation (mass spectrometry)ThermalAtomic physicsNuclear Experiment (nucl-ex)Nuclear ExperimentNuclear ExperimentNuclear theorydescription
On the basis of systematic measurements of fragmentation reactions, which provide a detailed overview on the velocity distributions of residual nuclei, an improved description of the kinematical properties of the fragmentation residues is established. This work is dedicated to the fluctuations of their momentum distributions. In contrast to previous investigations, limited to close-to-projectile fragments, we extended our study to the entire production range, down to the lightest observed fragments. In this context, beside the contribution of abrasion and evaporation processes, we considered the effect of the thermal break-up on the width of the momentum distributions. Using approximated theoretical descriptions of the different reaction stages, a new analytical formula for the variance of the momentum distribution is derived, which is well adapted to technical applications.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-11-08 |