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Influence of Nuclear Charge Radius Parameterization on the Excitation Function of Nuclear Stopping


  • School of Physics and Materials, Science, Thapar University, Patiala - 147004, Punjab, India
  • Mata Gujri College, Fatehgarh Sahib - 140406, Punjab, India


The initialization effects on the excitation function of nuclear stopping have been depicted through nuclear charge radii parameterizations within the framework of Isospin-dependent Quantum Molecular Dynamics (IQMD) model. The nuclear reactions of 5828Ni + 5828Ni and 12450 Sn + 12450Sn have been simulated at incident energies between 30 to 1500 MeV/nucleon for two different nuclear charge radii parameterizations (isospin-independent and -dependent) by including as well as excluding the momentum dependent interactions (MDI). Our study reveals that role of change in radius parameterization on nuclear stopping is more emphasized around 400 MeV/nucleon. MDI affects the nuclear stopping at relatively low energy and its role diminishes with increase in energy. Moreover, the isospin-dependent radius parameterization along with MDI is able to reduce the gap between experimental findings of INDRA and ALADIN collaborations and theoretical calculations. General Terms: Models and Codes, Theory of Nuclear Reactions


Heavy-Ion Collisions, Isospin-Dependent Nuclear Charge Radius, IQMD Model, Multifragmentation, Nuclear Reaction Simulation, Nuclear Stopping

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