Dynamical cluster decay model applied to very light mass compound systems of mass A~30 formed in heavy ion reactions

3rd International Workshop on "State of the Art in Nuclear Cluster Physics"

Singh, Bir Bikram^1 ; Kaur, Mandeep^1 ; Sharma, Manoj K.^2 ; Gupta, Raj K.^3

Department of Physics, Sri Guru Granth Sahib World University, Fatehgarh Sahib

140406, India^1

School of Physics and Materials Science, Thapar University, Patiala

147004, India^2

Department of Physics, Panjab University, Chandigarh

160014, India^3

关键词: Cluster decay;    Cluster models;    Clusterization;    Comparative analysis;    Compound system;    Fusion-Fission;    Heavy-ion reactions;    Sigma-c;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/569/1/012030/pdf
DOI  :  10.1088/1742-6596/569/1/012030

来源: IOP

【 摘 要 】

The study of the decay of32S∗ and31P∗ compound systems formed in20Ne+12C and19F+12C reactions, respectively, is further extended on the basis of collective clusterization process within the dynamical cluster model (DCM) of Gupta and collaborators, with the effects of deformations and orientations included, at an excitation energy E∗CN=60 MeV. In the present study, we have investigated the effects of deformations and orientations on the target, i.e.,12C like yield, denoted C-yield (σC), which contains fusion-fission (FF) decay cross-section, σFF, from compound nucleus process and deep inelastic orbiting (DIO) cross-section, σD1O, from non-compound nucleus process. As observed in one of our earlier study for32S∗ system there is a competition between FF and DIO, while, for31P∗ there is a contribution of FF cross-section only, in the total C-yield. The comparative analysis of C-Yield for the considerations of spherical and oriented nuclei, shows similar results with the only difference of the values of neck length parameter (ΔR), which are more for the later case. The calculated cross-sections ac show good agreement with experimental data for both the considerations.