CCFUS — A simplified coupled-channel code for calculation of fusion cross sections in heavy-ion reactions

✍ Scribed by C.H. Dasso; S. Landowne

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 250 KB
• Volume: 46
• Category: Article
• ISSN: 0010-4655
• DOI: 10.1016/0010-4655(87)90045-2

✦ Synopsis

Nature of the physical problem

There are strong enhancements of the fusion rates in low-en-Catalogue number: AATM ergy heavy ion collisions due to the couplings to other reaction channels. These couplings also modulate the distribution of Program obtainable from: CPC Program Library, Queen's Uni-angular momentum absorbed by the composite system at enversity of Belfast, N. Ireland (see application form in this ergies near the Coulomb barrier. The angular momentum issue) distributions in turn are essential for describing the decay of the compound nuclei.

Computer: VAX 8600 and SPERRY 1100 Method of solution Operating systems: VMS 4.4 and H73/39R3B

The various inelastic excitation and transfer reaction channels are treated as independent modes which couple to the initial Programming language used: FORTRAN 77 ground state. The corresponding wave equations are approximately uncoupled by diagonalizing the interaction at the bar-High speedstorage required: 10 Kbytes rier. The total transmission probability is then obtained by summing over the distribution of transmission probabilities for No. of bits in a word: 32/36 the eigenbarriers, with weights given by the overlap of the initial state with the eigenchannels. The variation of the cou-Peripherals used: terminal, line printer pling interaction in the barrier region can be taken into account using a second-order expansion.

Number of lines in the program: 325

Typical running time