The Incomplete Fusion reaction modeling

We would like to present a new model describing the dynamics of the Incomplete fusion reaction. Calculated mass distributions as well as alpha particle spectra will be compared to the set of experimental data. Our model is a development of Sum Rule Model. It is based on an assumption that incomplete fusion (ICF) is a two stage process. In the first stage, the projectile breaks apart when colliding with the target. In the second stage the projectile residue fuses with the target while the rest escapes in some effective potential. The escaping ('projectile like') fragment is emitted in forward angles, usually observed at θ<60 deg in laboratory frame. ICF influence on high spin states population was shown, nevertheless so far proposed models don't handle the dynamics of the process - the creation of the compound nuclei and a 'projectile like' fragment emission. Recently γ-ray fold distributions for the 51V+97Mo reaction at energy of 4.5 AMeV of 51V, measured with the γ-detector array GASP, have been compared to the predictions of our model. We would like to present the basics of the model as well as its software implementation - the COMPA code. It works in event by event mode, gives a complete information on the reaction products: the entry state spin and energy distribution, reaction point coordinates, directions and velocities of the recoil and emitted light particles. The stopping of the reaction products in the passive elements of the setup, like support, target and backing, is taken into account. This way the COMPA allows for easy comparison with the experimental results. Simulated α particle spectra will be compared to the experimental data in approx.10 AMeV region for the reactions 12C+160Gd and 12C+51V as well as 20Ne+122Sn, studied with the new EAGLE array recently put into operation at Heavy Ion Laboratory of the University of Warsaw