On the study of rotational effects in mass asymmetric colliding nuclei at intermediate energies

Abstract

The rotational dynamics has been studied for different mass asymmetric systems In49122+50126Sn, Cs48114+54134In, Mo40100+64148Gd, Kr3686+67162Ho, Ga3171+71177Lu, Ni2860+76188Os and Cr2450+78198Pt for incident energies between 40 MeV/nucleon and 400 MeV/nucleon for impact parameter range 0.25<bˆ<0.45 using isospin-dependent quantum molecular dynamics (IQMD) model. Our calculations reveal that the time evolutions of rotational observables for participant and spectator nuclear matter are different in mass asymmetric heavy ion reactions. Theoretical data of BUU model's azimuthal distributions for free protons have been compared successfully with IQMD model calculations. The rotational flow of free protons with increasing incident energies and elliptic flow (calculated from the fits of azimuthal distributions of free protons) dependence with energy has also been investigated.