By using an isospin-dependent quantum molecular dynamics model we study the effect of density-dependent symmetry energy on nuclear stopping. Reactions are carried out for Ca + Ca, Ni + Ni and Sn + Sn for different isotopic compositions. Our aim is to pin down the influence of density-dependent symmetry energy on nuclear stopping. The nuclear stopping is found to decrease with an increase in stiffness of density-dependent symmetry energy. The mild sensitivity of nuclear stopping to different forms of density-dependent symmetry energy is due to the small variation in the density.

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The effect of density dependent symmetry energy is studied on elliptical flow is studied using isospin-dependent quantum molecular dynamics model(IQMD). We have used the reduced isospindependent cross-section with hard(H) equation of state to study the sensitivity of elliptical flow towards symmetry energy in the energy range of 50 -1000 MeV/nucleon. The elliptical flow becomes zero at a particular energy termed as transition energy. A systematic effort has been made to pin down the transition energy for the density dependent symmetry energy. 25.75.Ld Recently, an attempt was made by S. Kumar el. al. [9] to correlate the elliptical flow with isospin content of a reaction. Various studies [9,13] concluded the elliptical flow as a powerful probe for the symmetry energy. Unfortunately, all the calculations were silent about the den- PACS

Fragmentation of light charged particles is studied for various systems at different incident energies between 50 and 1000 MeV/nucleon. We analyze fragment production at incident energies above, below and at transition energies using the isospin dependent quantum molecular dynamics(IQMD) model. The trends observed for the fragment production and rapidity distributions depend upon the incident energy, size of the fragments, composite mass of the reacting system as well as on the impact parameter of the reaction. The free nucleons and light charged particles show continous homogeneous changes irrespective of the transition energies indicating that there is no relation between the transition energy and production of the free as well as light charged particles.

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