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Abstract: The effect of different isospin-dependent cross-section on directed flow isstudied for variety of systemsfor which experimental balance energies areavailable using an isospin-dependent Quantum Molecular Dynamic IQMD model.We show that balance energies are sensitive towards isospin-dependentcross-sections for light systems, while nearly no effect exist for heaviernuclei. A reduced cross-section $\sigma = 0.9\sigma {NN}$ with stiff equationof state is able to explain experimental balance energies in most of systems. Apower law behaviour is also given for the mass dependence of balance energy,which also follow N-Z dependence.



Autor: Sanjeev Kumar, Rajni, Suneel Kumar

Fuente: https://arxiv.org/







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