[en] Large number of theoretical effects has been put forward to give simple and most comprehensive form of ion-ion interaction using various microscopic/macroscopic theories. Among such attempts proximity potential is well known for it simplicity and numerous applications. At the same time it is also clear from the literature that original proximity potential overestimate the experimental data by 4%. Recently a new form of the proximity potential is also suggested to remove the above discrepancy between theory and data. But results are not in good agreement. The proximity potential have been trying to modify keeping the original form of the proximity potential unaltered by using up to date knowledge of the universal function, surface energy coefficient and nuclear radius

[en] By using a suitable set of the surface energy coefficient, nuclear radius, and universal function, the original proximity potential 1977 is modified. The overestimate of the data by 4% reported in the literature is significantly reduced. Our modified proximity potential reproduces the experimental data nicely compared to its older versions. (authors)

[en] By using a suitable set of the surface energy coefficient, nuclear radius, and universal function, the original proximity potential 1977 is modified. The overestimate of the data by 4% reported in the literature is significantly reduced. Our modified proximity potential reproduces the experimental data nicely compared to its older versions. (nuclear physics)

[en] A good progress has been made on the evolution of various simulation models, which are being used to study various observables, but the stability of ground state nuclei is still a serious issue for many dynamical models. This problem is more pronounced when momentum-dependent interactions are included in the calculations. Many attempts reported in the literature tried to solve this problem by controlling various technical parameters like using (i) covariant treatment of two-body interaction and scattering (ii) cooling procedure via Pauli blocking and (iii) implementation of different ground-state initializations

[en] The energy of vanishing flow has been a topic of great interest for last four decades. A lot of efforts have been done in this direction experimentally as well as theoretically. Here, we make an attempt to compare our theoretical calculations for the energy of vanishing flow (EVF) carried out using Isospin Quantum Molecular Dynamics (IQMD) model with earlier attempts using many-body approaches like the Quantum Molecular Dynamics (QMD), IQMD, Ultra-relativistic Quantum Molecular Dynamics (UrQMD), and Antisymmetrized Molecular Dynamics (AMD) models as well as with optical model to see the model dependencies on this observable

[en] In the present study, we aim to explore the role of Coulomb potential on the thermalization achieved in the reactions involving superheavy nuclei. Particularly, we shall study the degree of the equilibrium attained in a reaction by the 3D density plots, anisotropy ratio as well as by the rapidity distribution of the nucleons. Our study reveals that the degree of the equilibrium attained in the central reactions of the superheavy nuclei remains unaffected by the Coulomb potential.

[en] The structural effects like radius and density profile of colliding nuclei can play crucial role on the reaction dynamics at intermediate energies. Recently, Yong et al. studied initialization effects on the symmetry energy sensitive observables like free neutron to proton ratio (n/p), π⁺π⁻ ratio, and neutron to proton differential flow F_x^n-p in the context of IBUU model. A lot of theoretical and experimental efforts has been made to calculate the directed flow and its disappearance for systems ranging between ¹²C + ¹²C and ¹⁹⁷Au + ¹⁹⁷Au. There was always found a large discrepancy between the experimental and the theoretical calculated balance energies for lighter systems like ¹²C + ¹²C. It is also well known that structural effects affect the lighter system largely as compared to heavier systems. So the present study has aimed to investigate the structural effects on the directed flow of ¹²C + ¹²C and ¹⁹⁷Au + ¹⁹⁷Au systems. The study is carried out using isospin-dependent quantum molecular dynamics model

[en] Heavy-ion collisions (HIC) at intermediate energies are used as a powerful tool to get deeper knowledge about the behavior of nuclear matter at different thermodynamical conditions. A large number of observables have been purposed to probe the nuclear matter. The aim is to present the systematic study of the structural effects on the mass dependence of balance energy over the entire periodic table. The present study is carried out using isospin-dependent quantum molecular dynamics model

[en] A considerable progress has been made in determining the EoS of nuclear matter, however strength of in-medium nn cross section has still been a topic of debate. In the literature a variety of cross-section have been used by various authors according to the need of the their studies. Here the aim is to compare the role of density-dependent reduction of the cross-section as well as constant reduction of the cross-section on the mass dependence of the balance energy throughout the mass range between 48-270 using IQMD model

[en] Heavy-ion collisions at intermediate energies, as for example, provided by FOPI and INDRA collaborations, have been investigated for several decades using different observables such as directed flow, elliptical flow, multifragmentation and nuclear stopping etc. to probe the bulk nuclear matter properties at different thermodynamical conditions. Among these observables, the directed flow, a measure of collective momentum transfer in the reaction plane, is one of the most extensively studied variables to constrain the equation of state (EOS) of symmetric nuclear matter. Currently intermediate mass fragments (IMF's) and light charged particles (LCP's) directed flow is also being used to understand the nature of asymmetric nuclear matter. At the same time, isospin dependence of directed flow and its disappearance is also being used to probe the density dependence of nuclear symmetry energy