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Using the quantum molecular dynamics model, we study the nuclear dynamics at the balance energy of mass asymmetric colliding nuclei by keeping the total mass of the system fixed and by varying the mass asymmetry (

It is now well established that collective transverse flow of the nucleons is a signature of the interaction and can provide information about the equation of state (EoS) as well as nucleon-nucleon (nn) cross-section of the nuclear matter. Extensive studies have been done over the past three decades on the sensitivity of collective transverse flow towards the nuclear EoS, nn cross-section, and entrance channel parameters such as incident energy of projectile, size of the system (

Recently, the sensitivity of collective transverse flow and

The quantum molecular dynamics model [

The center of each Gaussian (in the coordinate and momentum space) is chosen by the Monte Carlo procedure. The momentum of nucleons (in each nucleus) is chosen between zero and local Fermi momentum [

The centroid of each wave packet is propagated using the classical equations of motion:

The static (local) Skyrme interaction can further be parameterized as

For the present analysis, we simulated the reactions of

In Figure

The time evolution of the average density

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Same as Figure

It is well known that balance energy represents a counterbalancing between the attractive and repulsive forces; therefore, this fact should also be reflected in quantities like spectator and participant matter. In Figure

The time evolution of the normalized spectator matter (a, b) and participant matter (c, d). The results for total system mass

In Figure

Same as Figure

Temperature is one of the associated quantities linked with a dense matter. In principle, one can define true temperature only for a thermalized and equilibrated matter. Since in heavy-ion collisions the matter is nonequilibrated, one cannot talk of temperature. One can only look in terms of the local environment. In our case, we follow the description of the temperature as given in [

In Figure

The maximal value of the average temperature

In Figure

Same as Figure

We studied the nuclear dynamics (particularly, average and maximum temperature and density, collision rate, participant-spectator matter, anisotropic ratio, relative momentum, and their mass asymmetry and mass dependence) at the balance energy of mass asymmetric reactions by keeping the total mass of the system fixed as 40, 80, 160, and 240 and varying the mass asymmetry of the reaction from 0.1 to 0.7. A sizeable effect of mass asymmetry on these quantities is observed. Therefore one cannot ignore the presence of mass asymmetry of reaction while studying the various phenomena of intermediate energy heavy-ion reactions.

The author declares that there is no conflict of interests regarding the publication of this paper.

^{197}Au +

^{197}Au at intermediate energies

^{96}Ru(

^{96}Zr) +

^{96}Ru(

^{96}Zr) collisions at 400