Role of mass asymmetry on the peak energy of intermediate mass fragments production and its influence towards isospin effects

Using the isospin-dependent quantum molecular dynamics model, we study the peak intermediate mass fragments production and corresponding center-of-mass energy in various mass asymmetric reactions. The study is spanned over different mass asymmetries for total system mass 92, 162 and 240. We propose the peak energy as a powerful probe to constrain the low-density behavior of symmetry energy. This peak energy is found to remove the dual dependence of isospin effects in symmetry energy and cross-section.