Modeling Heavy Ion Ionization Energy Loss at Low and Intermediate Energies
نویسنده
چکیده
The needs of contemporary accelerator and space projects led to significant efforts made to include description of heavy ion interactions with matter in general-purpose Monte Carlo codes. This paper deals with an updated model of heavy ion ionization energy loss developed previously for the MARS code. The model agrees well with experimental data for various projectiles and targets including super-heavy ions in low-Z media.
منابع مشابه
Modeling heavy ion ionization loss in the MARS15 code
The needs of various accelerator and space projects stimulated recent developments to the MARS Monte Carlo code. One of the essential parts of those is heavy ion ionization energy loss. This paper describes an implementation of several corrections to dE/dx in order to take into account the deviations from the Bethe theory at low and high energies as well as the effect of a finite nuclear size a...
متن کاملIsotope analysis in central heavy ion collisions at intermediate energies
Symmetry energy is a key quantity in the study of the equation of state of asymmetric nuclear matter. Heavy ion collisions at low and intermediate energies, performed at Laboratori Nazionali di Legnaro and Laboratori Nazionali del Sud, can be used to extract information on the symmetry energy coefficient Csym, which is currently poorly known but relevant both for astrophysics and for structure ...
متن کاملPassage of particles through matter 1
27. PASSAGE OF PARTICLES THROUGH MATTER . . . . . . . . . . . . . . . . . . . . . 2 27.1. Notation . . . . . . . . . . . . . . . . . . . 2 27.2. Electronic energy loss by heavy particles . . . . . . . . . . . . . . . . . . . . . . 3 27.2.1. Moments and cross sections . . . . . . . . 3 27.2.2. Stopping power at intermediate energies . . . . . . . . . . . . . . . . . . . 4 27.2.3. Energy loss at ...
متن کاملIsospin relaxation time in heavy - ion collisions at intermediate energies
Using an isospin-dependent transport model, we have studied the isospin and momentum relaxation times in the heavy residues formed in heavy-ion collisions at intermediate energies. It is found that only at incident energies below the Fermi energy, chemical or thermal equilibrium can be reached before dynamical instability is developed in the heavy residues. Also, the isospin relaxation time is ...
متن کاملTransport model with quasipions
We extend the normal transport model to include the medium effect on pions by treating them as quasiparticles. The property of the quasipion is determined using the delta-hole model. Modeling heavy-ion collisions at intermediate energies with the new transport equations, we find that it leads to an enhanced production of pions with low kinetic energies. This gives a plausible explanation for th...
متن کامل