An Antisymmetrized Molecular Dynamics model is used to explore the collision of 114Cd projectiles with 92Mo target nuclei at E/A=50 MeV over a broad range in impact parameter. The atomic number (Z), velocity, and emission pattern of the reaction products are examined as a function of the impact parameter and the cluster recognition time. The non-central collisions are found to be essentially binary in character resulting in the formation of an excited projectile-like fragment (PLF∗) and target-like fragment (TLF∗). The decay of these fragments occurs on a short timescale, 100≤t≤300 fm/c. The average excitation energy deduced for the PLF∗ and TLF∗ `saturates for mid-central collisions, 3.5≤b≤6 fm, with its magnitude depending on the cluster recognition time. For short cluster recognition times (t=150 fm/c), an average excitation energy as high as ≈6 MeV is predicted. Short timescale emission leads to a loss of initial correlations and results in features such as an anisotropic emission pattern of both IMFs and alpha particles emitted from the PLF∗ and TLF∗ in peripheral collisions.
@article{arxiv.nucl-th/0509074,
title = {Short timescale behavior of colliding heavy nuclei at intermediate energies},
author = {S. Hudan and R. T. deSouza and A. Ono},
journal= {arXiv preprint arXiv:nucl-th/0509074},
year = {2009}
}